{"id":3969,"date":"2026-03-28T08:10:59","date_gmt":"2026-03-28T08:10:59","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=3969"},"modified":"2026-04-03T12:19:23","modified_gmt":"2026-04-03T12:19:23","slug":"oscillations-11-notes","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/oscillations-11-notes\/","title":{"rendered":"Oscillations 11 Notes: The Ultimate Guide for NEET Physics"},"content":{"rendered":"\n<style>\n@import url('https:\/\/www.google.com\/search?q=https:\/\/fonts.googleapis.com\/css2%3Ffamily%3DPlus%2BJakarta%2BSans:wght%40400%3B600%3B700%3B800%26family%3DDM%2BSans:wght%40300%3B400%3B500%3B600%26family%3DJetBrains%2BMono:wght%40400%3B500%3B700%26display%3Dswap');\n\n:root {\n--accent: #e8600a;\n--accent-light: #fff3ec;\n--accent-mid: #fde3cc;\n--dark: #111827;\n--text: #1a1a1a;\n--text-muted: #4b5563;\n--border: #e5e7eb;\n--green-bg: #f0fdf4;\n--green-border: #16a34a;\n--blue-bg: #eff6ff;\n--blue-border: #3b82f6;\n}\n\nbody {\nfont-family: 'DM Sans', sans-serif;\ncolor: var(--text);\nline-height: 1.6;\nmargin: 0;\npadding: 0;\n}\n\nh1, h2, h3 {\nfont-family: 'Plus Jakarta Sans', sans-serif;\ncolor: var(--dark);\n}\n\nh1 { font-weight: 800; 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color: var(--accent); }\ndetails[open] summary::after { content: '\u2212'; }\n.faq-content { padding: 16px 20px; color: var(--text-muted); background: white; }\n\n.revision-box { background: var(--green-bg); border: 2px solid var(--green-border); border-radius: 12px; padding: 25px; margin: 30px 0; }\n.revision-box h3 { color: var(--green-border); margin-top: 0; }\n.revision-list { color: #166534; padding-left: 20px; }\n.revision-list li { margin-bottom: 8px; }\n\n.internal-links { background: #f9fafb; border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin: 25px 0; }\n.internal-links span { display: block; font-weight: 700; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 12px; }\n.internal-links a { color: var(--accent); text-decoration: none; font-weight: 600; display: block; margin-bottom: 6px; }\n\n.download-btn {\nbackground: var(--dark); color: white; text-decoration: none; padding: 12px 24px; border-radius: 8px;\ndisplay: inline-flex; align-items: center; gap: 10px; font-weight: 600; margin-top: 15px;\n}\n\n.cta-section {\nbackground: linear-gradient(135deg, #e8600a, #c2410c, #9a3412);\npadding: 60px 40px; text-align: center; color: white; margin-top: 50px;\n}\n.cta-section h2 { color: white; justify-content: center; font-size: 2.2rem; }\n.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 800px; margin: 0 auto 30px; }\n.cta-btns { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }\n.btn-solid { background: white; color: var(--accent); padding: 14px 28px; border-radius: 8px; text-decoration: none; font-weight: 700; }\n.btn-outline { border: 2px solid white; color: white; padding: 12px 28px; border-radius: 8px; text-decoration: none; font-weight: 700; }\n<\/style>\n\n<div class=\"content-wrapper\">\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">01<\/div>\n<h2>Introduction to Oscillations<\/h2>\n<\/div>\n\n<p>To master the <strong>Oscillations 11 Notes<\/strong>, one must first understand the fundamental nature of movement. In physics, motion that repeats itself at regular intervals of time is called periodic motion. However, <strong>oscillation<\/strong> is a specific subset of periodic motion where a system moves back and forth (to and fro) about a fixed mean position or equilibrium position.<\/p>\n\n<p>Every oscillatory motion is periodic, but the reverse is not true. For instance, the Earth&#8217;s revolution around the Sun is periodic but not oscillatory because it doesn&#8217;t move back and forth. Common examples of oscillations include the swinging of a simple pendulum, the vibrations of a guitar string, and the movement of a mass attached to a spring.<\/p>\n\n<div class=\"callout tip\">\n<div class=\"callout-pill tip-pill\">TIP<\/div>\nRemember: For a motion to be oscillatory, there must be a restoring force that always acts towards the mean position.\n<\/div>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">02<\/div>\n<h2>Types of Oscillatory Motion<\/h2>\n<\/div>\n\n<p>Oscillations are categorized based on how the system interacts with its environment and external forces:<\/p>\n\n<div class=\"grid-cards\">\n<div class=\"mini-card\">\n<span class=\"card-tag\">Free Oscillations<\/span>\n<p class=\"card-text\">Occur when a system oscillates with its natural frequency after an initial displacement, with no external forces acting on it.<\/p>\n<\/div>\n<div class=\"mini-card\">\n<span class=\"card-tag\">Damped Oscillations<\/span>\n<p class=\"card-text\">Oscillations where the amplitude decreases over time due to resistive forces like air friction or internal viscosity.<\/p>\n<\/div>\n<div class=\"mini-card\">\n<span class=\"card-tag\">Forced Oscillations<\/span>\n<p class=\"card-text\">Maintained by an external periodic force that compensates for the energy lost due to damping.<\/p>\n<\/div>\n<div class=\"mini-card\">\n<span class=\"card-tag\">Resonant Oscillations<\/span>\n<p class=\"card-text\">A special case of forced oscillations where the driving frequency matches the natural frequency of the system.<\/p>\n<\/div>\n<\/div>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">03<\/div>\n<h2>Simple Harmonic Motion (SHM)<\/h2>\n<\/div>\n\n<p>Simple Harmonic Motion is the cornerstone of <strong>Oscillations 11 Notes<\/strong>. It is defined as a type of periodic motion where the restoring force is directly proportional to the displacement of the particle from the mean position and is always directed towards that position.<\/p>\n\n<div class=\"formula-orange\">\n<div class=\"formula-orange-text\">\nF = \u2013k x\n<\/div>\n<\/div>\n\n<p>Where &#8216;k&#8217; is the force constant (or spring constant) and &#8216;x&#8217; is the displacement. The negative sign indicates that the force acts in the direction opposite to the displacement.<\/p>\n\n<a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:20px;\">\n<img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/Course-Poromo-Banner-scaled.png\" alt=\"Mission 180 NEET Physics Rankers Batch - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n<\/a>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">04<\/div>\n<h2>Mathematical Representation of SHM<\/h2>\n<\/div>\n\n<p>The displacement of a particle executing SHM can be expressed as a function of time using sine or cosine waves. This is why SHM is often called harmonic motion.<\/p>\n\n<div class=\"formula-dark\">\n<span class=\"formula-label\">Displacement Equation<\/span>\n<div class=\"formula-dark-text\">x(t) = A sin(\u03c9t + \u03c6)<\/div>\n<\/div>\n\n<ul>\n<li><strong>A (Amplitude):<\/strong> Maximum displacement from the mean position.<\/li>\n<li><strong>\u03c9 (Angular Frequency):<\/strong> Rate of change of phase, \u03c9 = 2\u03c0\/T = 2\u03c0f.<\/li>\n<li><strong>\u03c6 (Phase Constant):<\/strong> Initial state of the particle at t = 0.<\/li>\n<li><strong>(\u03c9t + \u03c6):<\/strong> Total phase at time t.<\/li>\n<\/ul>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">05<\/div>\n<h2>Velocity and Acceleration in SHM<\/h2>\n<\/div>\n\n<p>Velocity (v) is the rate of change of displacement, and acceleration (a) is the rate of change of velocity. In SHM, these variables are also periodic functions of time.<\/p>\n\n<div class=\"grid-cards\">\n<div class=\"mini-card\">\n<span class=\"card-tag\">Velocity<\/span>\n<p class=\"card-text\">v = dx\/dt = A\u03c9 cos(\u03c9t + \u03c6)\n\n\nIn terms of x: v = \u03c9\u221a(A<sup>2<\/sup> \u2013 x<sup>2<\/sup>)<\/p>\n<\/div>\n<div class=\"mini-card\">\n<span class=\"card-tag\">Acceleration<\/span>\n<p class=\"card-text\">a = dv\/dt = \u2013A\u03c9<sup>2<\/sup> sin(\u03c9t + \u03c6)\n\n\nIn terms of x: a = \u2013\u03c9<sup>2<\/sup>x<\/p>\n<\/div>\n<\/div>\n\n<div class=\"callout warning\">\n<div class=\"callout-pill warning-pill\">WARN<\/div>\nAt the mean position (x=0), velocity is maximum (v = A\u03c9) but acceleration is zero. At extreme positions (x=A), velocity is zero but acceleration is maximum (a = \u03c9<sup>2<\/sup>A).\n<\/div>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">06<\/div>\n<h2>Energy in Simple Harmonic Motion<\/h2>\n<\/div>\n\n<p>A system in SHM possesses both Kinetic Energy (KE) and Potential Energy (PE). Since SHM is a conservative system, the total mechanical energy remains constant throughout the motion.<\/p>\n\n<div class=\"formula-dark\">\n<span class=\"formula-label\">Energy Equations<\/span>\n<div class=\"formula-dark-text\">\nPE = (1\/2)kx<sup>2<\/sup> = (1\/2)m\u03c9<sup>2<\/sup>x<sup>2<\/sup>\n\n\nKE = (1\/2)m\u03c9<sup>2<\/sup>(A<sup>2<\/sup> \u2013 x<sup>2<\/sup>)\n\n\nE<sub>total<\/sub> = (1\/2)kA<sup>2<\/sup> = (1\/2)m\u03c9<sup>2<\/sup>A<sup>2<\/sup>\n<\/div>\n<\/div>\n\n<p>The total energy is proportional to the square of the amplitude and the square of the frequency. This is a vital concept often tested in NEET exams using <strong>Oscillations 11 Notes<\/strong>.<\/p>\n\n<a href=\"https:\/\/ksquareinstitute.in\/neet-2026-rank-predictor\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:20px;\">\n<img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/neet-2026-college-and-rank-predictor-scaled.png\" alt=\"NEET 2026 Rank Predictor - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n<\/a>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">07<\/div>\n<h2>Simple Pendulum and Spring Systems<\/h2>\n<\/div>\n\n<p>Two primary systems dominate the numerical landscape of this chapter: the simple pendulum and the mass-spring system.<\/p>\n\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Simple Pendulum<\/th>\n<th>Spring-Mass System<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Restoring Force<\/td>\n<td>mg sin\u03b8<\/td>\n<td>kx<\/td>\n<\/tr>\n<tr>\n<td>Time Period (T)<\/td>\n<td>2\u03c0\u221a(l\/g)<\/td>\n<td>2\u03c0\u221a(m\/k)<\/td>\n<\/tr>\n<tr>\n<td>Frequency (f)<\/td>\n<td>(1\/2\u03c0)\u221a(g\/l)<\/td>\n<td>(1\/2\u03c0)\u221a(k\/m)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<p>For a simple pendulum, the time period is independent of the mass of the bob and the amplitude (for small angles). For a spring, the time period depends on the mass and the stiffness of the spring.<\/p>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">08<\/div>\n<h2>Damped and Forced Oscillations<\/h2>\n<\/div>\n\n<p>In real life, energy is lost. Damping forces are typically proportional to the velocity of the object (F<sub>d<\/sub> = \u2013bv). This leads to an exponential decay in amplitude.<\/p>\n\n<div class=\"formula-orange\">\n<span class=\"formula-label\">Amplitude in Damping<\/span>\n<div class=\"formula-orange-text\">A(t) = A<sub>0<\/sub> e<sup>\u2013bt\/2m<\/sup><\/div>\n<\/div>\n\n<p>When an external periodic force is applied, the system eventually oscillates with the frequency of the external driver. <strong>Resonance<\/strong> occurs when the driving frequency matches the natural frequency, leading to a massive increase in amplitude.<\/p>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">09<\/div>\n<h2>PYQ Trends: Oscillations for NEET<\/h2>\n<\/div>\n\n<table>\n<thead>\n<tr>\n<th>Topic Name<\/th>\n<th>Frequency (Last 5 Years)<\/th>\n<th>Difficulty Level<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Energy Transformations in SHM<\/td>\n<td>High<\/td>\n<td>Moderate<\/td>\n<\/tr>\n<tr>\n<td>Time Period of Pendulums<\/td>\n<td>Very High<\/td>\n<td>Easy-Medium<\/td>\n<\/tr>\n<tr>\n<td>Damping and Q-Factor<\/td>\n<td>Medium<\/td>\n<td>Theoretical<\/td>\n<\/tr>\n<tr>\n<td>Velocity\/Acceleration Relations<\/td>\n<td>High<\/td>\n<td>Direct Formula<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">10<\/div>\n<h2>Common Mistakes in Oscillations<\/h2>\n<\/div>\n\n<ul>\n<li><strong>Phase Confusion:<\/strong> Students often forget to check if the particle starts from the mean position (sin) or extreme position (cos).<\/li>\n<li><strong>Units:<\/strong> Mixing grams with SI units while calculating the spring constant.<\/li>\n<li><strong>Amplitude in Energy:<\/strong> Forgetting that Energy depends on A<sup>2<\/sup>, not just A.<\/li>\n<li><strong>Pendulum Length:<\/strong> Not considering the radius of the bob when calculating &#8216;l&#8217; from the point of suspension.<\/li>\n<\/ul>\n\n<div class=\"revision-box\">\n<h3>Quick Revision: Oscillations 11 Notes<\/h3>\n<ul class=\"revision-list\">\n<li>Condition for SHM: a = \u2013\u03c9<sup>2<\/sup>x<\/li>\n<li>Angular Frequency: \u03c9 = \u221a(k\/m)<\/li>\n<li>Max Velocity: v<sub>max<\/sub> = A\u03c9 at x = 0<\/li>\n<li>Max Acceleration: a<sub>max<\/sub> = A\u03c9<sup>2<\/sup> at x = A<\/li>\n<li>Total Energy: E = (1\/2)m\u03c9<sup>2<\/sup>A<sup>2<\/sup> (Constant)<\/li>\n<li>Time Period Pendulum: T = 2\u03c0\u221a(l\/g)<\/li>\n<li>Time Period Spring: T = 2\u03c0\u221a(m\/k)<\/li>\n<li>Resonance: f<sub>driver<\/sub> = f<sub>natural<\/sub><\/li>\n<li>In SHM, velocity leads displacement by \u03c0\/2.<\/li>\n<li>In SHM, acceleration leads displacement by \u03c0.<\/li>\n<\/ul>\n<a href=\"#\" rel=\"nofollow noopener noreferrer\" class=\"download-btn\">Download Oscillations Formula Sheet PDF<\/a>\n<\/div>\n\n<div style=\"display:flex; align-items:center; gap:15px; margin-top:2rem;\">\n<div class=\"badge\">11<\/div>\n<h2>Frequently Asked Questions (FAQs)<\/h2>\n<\/div>\n\n<details>\n<summary>What is the difference between Periodic and Oscillatory motion?<\/summary>\n<div class=\"faq-content\">\nPeriodic motion repeats itself after a fixed time interval (e.g., Earth&#8217;s orbit). Oscillatory motion is a specific periodic motion where the object moves back and forth about a mean position. All oscillations are periodic, but all periodic motions are not oscillations.\n<\/div>\n<\/details>\n\n<details>\n<summary>Why is the motion of a simple pendulum considered SHM only for small angles?<\/summary>\n<div class=\"faq-content\">\nThe restoring force in a pendulum is mg sin\u03b8. For SHM, the force must be proportional to displacement (\u03b8). This only holds true when sin\u03b8 \u2248 \u03b8, which occurs at small angles (usually less than 15 degrees).\n<\/div>\n<\/details>\n\n<details>\n<summary>How does the time period of a spring change if it is cut into two halves?<\/summary>\n<div class=\"faq-content\">\nWhen a spring is cut into two halves, the spring constant &#8216;k&#8217; of each half doubles (k&#8217; = 2k). Since T = 2\u03c0\u221a(m\/k), the time period will decrease by a factor of \u221a2.\n<\/div>\n<\/details>\n\n<details>\n<summary>Does the total energy of a particle in SHM depend on its mass?<\/summary>\n<div class=\"faq-content\">\nYes, because the total energy formula is E = (1\/2)m\u03c9<sup>2<\/sup>A<sup>2<\/sup>. Even if expressed as (1\/2)kA<sup>2<\/sup>, the value of &#8216;k&#8217; itself is typically related to mass and frequency.\n<\/div>\n<\/details>\n\n<details>\n<summary>What is the phase difference between velocity and acceleration in SHM?<\/summary>\n<div class=\"faq-content\">\nThe phase difference between velocity and acceleration is \u03c0\/2 (90 degrees). Velocity leads displacement by \u03c0\/2, and acceleration leads velocity by another \u03c0\/2.\n<\/div>\n<\/details>\n\n<div class=\"internal-links\">\n<span>Related Study Resources<\/span>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-physics-survival-kit-2026\/\">NEET Physics Survival Kit 2026<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/organic-chemistry-strategy-neet\/\">Organic Chemistry Strategy for NEET<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/top-10-tricky-neet-biology-diagrams\/\">Top 10 Tricky NEET Biology Diagrams<\/a>\n<\/div>\n\n<section class=\"cta-section\">\n<h2>Crack NEET Physics with Mission 180<\/h2>\n<p>Don&#8217;t let complex chapters like Oscillations hold you back. Join our specialized Rankers Batch and master every concept with expert guidance and high-yield practice sessions.<\/p>\n<div class=\"cta-btns\">\n<a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" class=\"btn-solid\">Enroll in Mission 180<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/free-study-material\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" class=\"btn-outline\">Free Study Material<\/a>\n<\/div>\n<\/section>\n\n<\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Table of Contents \u2014 Physics Class 11<\/title>\n  \n  <!-- Google Fonts Import -->\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n  <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&#038;family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&#038;display=swap\" rel=\"stylesheet\">\n  \n  <style>\n    \/* Scoped wrapper using a unique ID to prevent CSS conflicts. *\/\n    #physics-toc-wrapper {\n      font-family: 'DM Sans', sans-serif;\n      width: 100%;\n      margin: 0;\n      padding: 60px 0;\n      color: #111;\n      background: #fff;\n      -webkit-font-smoothing: antialiased;\n    }\n\n    #physics-toc-wrapper .container-inner {\n      width: 100%;\n      margin: 0 auto;\n      padding: 0; \/* Set left\/right padding to 0 *\/\n    }\n\n    #physics-toc-wrapper h1 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.85rem;\n      font-weight: 700;\n      color: #71717a;\n      margin: 0 0 8px;\n      letter-spacing: 0.1em;\n      text-transform: uppercase;\n      padding-left: 16px; \/* Keeping a small offset for headings so they aren't touching the screen edge *\/\n    }\n\n    #physics-toc-wrapper h2 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 2.25rem;\n      font-weight: 800;\n      margin: 0 0 48px;\n      letter-spacing: -0.02em;\n      color: #09090b;\n      padding-left: 16px; \/* Keeping a small offset for headings *\/\n    }\n\n    #physics-toc-wrapper table {\n      width: 100%;\n      border-collapse: collapse;\n      border-spacing: 0;\n      \/* Border-left and border-right set to none or removed if you want it truly edge-to-edge with the screen *\/\n      border-top: 1px solid #e4e4e7;\n      border-bottom: 1px solid #e4e4e7;\n    }\n\n    #physics-toc-wrapper tr {\n      border-bottom: 1px solid #e4e4e7;\n      transition: all 0.2s ease;\n    }\n\n    #physics-toc-wrapper tr:hover {\n      background-color: #f8fafc;\n    }\n\n    #physics-toc-wrapper tr:last-child {\n      border-bottom: none;\n    }\n\n    #physics-toc-wrapper td {\n      padding: 24px 16px;\n      vertical-align: middle;\n      font-size: 1.05rem;\n      font-weight: 500;\n      border-right: 1px solid #e4e4e7;\n    }\n\n    #physics-toc-wrapper td:last-child {\n      border-right: none;\n    }\n\n    \/* First column (Numbers) alignment and padding *\/\n    #physics-toc-wrapper td:first-child {\n      color: #a1a1aa;\n      font-size: 0.9rem;\n      width: 70px;\n      font-weight: 400;\n      font-variant-numeric: tabular-nums;\n      text-align: center;\n      padding-left: 10px;\n    }\n\n    \/* Middle column (Chapter Name) alignment and padding *\/\n    #physics-toc-wrapper td:nth-child(2) {\n      padding-left: 24px;\n      color: #18181b;\n    }\n\n    \/* Last column (Button) alignment and padding *\/\n    #physics-toc-wrapper td:last-child {\n      text-align: right;\n      width: 180px;\n      padding-right: 16px;\n    }\n\n    \/* Button Styling *\/\n    #physics-toc-wrapper a.go {\n      display: inline-block;\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.75rem;\n      font-weight: 800;\n      padding: 12px 24px;\n      border: 1.5px solid #18181b;\n      border-radius: 8px;\n      color: #18181b;\n      text-decoration: none;\n      letter-spacing: 0.05em;\n      text-transform: uppercase;\n      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);\n      white-space: nowrap;\n    }\n\n    #physics-toc-wrapper a.go:hover {\n      background: #18181b;\n      color: #ffffff;\n      transform: translateY(-2px);\n      box-shadow: 0 4px 12px rgba(24, 24, 27, 0.15);\n    }\n\n    \/* Responsive adjustments *\/\n    @media (max-width: 768px) {\n      #physics-toc-wrapper h2 {\n        font-size: 1.75rem;\n        margin-bottom: 32px;\n      }\n      #physics-toc-wrapper td {\n        padding: 18px 12px;\n        font-size: 0.95rem;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<div id=\"physics-toc-wrapper\">\n  <div class=\"container-inner\">\n    <h1>Table of Contents<\/h1>\n    <h2>Physics &mdash; Class 11<\/h2>\n    \n    <table>\n      <tr><td>01<\/td><td>Units and Measurements<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/units-and-measurements-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>02<\/td><td>Motion in a Straight Line<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/motion-in-a-straight-line-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>03<\/td><td>Motion in a Plane<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/motion-in-a-plane-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>04<\/td><td>Laws of Motion<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/laws-of-motion-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>05<\/td><td>Work, Energy and Power<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/work-energy-and-power-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>06<\/td><td>System of Particles and Rotational Motion<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/system-of-particles-and-rotational-motion-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>07<\/td><td>Gravitation<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/gravitation-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>08<\/td><td>Mechanical Properties of Solids<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/mechanical-properties-of-solids-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>09<\/td><td>Mechanical Properties of Fluids<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/mechanical-properties-of-fluids-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>10<\/td><td>Thermal Properties of Matter<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/thermal-properties-of-matter-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>11<\/td><td>Thermodynamics<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/thermodynamics-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>12<\/td><td>Kinetic Theory<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/kinetic-theory-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>13<\/td><td>Oscillations<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/oscillations-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>14<\/td><td>Waves<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/waves-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n    <\/table>\n  <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>01 Introduction to Oscillations To master the Oscillations 11 Notes, one must first understand the fundamental nature of movement. In physics, motion that repeats itself at regular intervals of time is called periodic motion. However, oscillation is a specific subset of periodic motion where a system moves back and forth (to and fro) about a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[166,168,164,165,167],"class_list":["post-3969","post","type-post","status-publish","format-standard","hentry","category-free-study-material","tag-class-11-physics-oscillations","tag-oscillation-concepts-neet-jee","tag-oscillations-11-notes","tag-shm-formulas","tag-simple-harmonic-motion-class-11"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=3969"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3969\/revisions"}],"predecessor-version":[{"id":4216,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3969\/revisions\/4216"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=3969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=3969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=3969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}