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Oscillations

Uttarakhand Board · Class 11 · Physics

Quick revision notes for Oscillations — Uttarakhand Board Class 11 Physics. Key concepts, formulas, and definitions for last-minute revision.

65 questions22 flashcards5 concepts

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Key Topics to Revise

1

Periodic and Oscillatory Motion

  • Periodic motion repeats itself after fixed intervals of time called period (T)
  • Oscillatory motion is to-and-fro motion about a mean position
  • All oscillatory motions are periodic, but not all periodic motions are oscillatory
2

Simple Harmonic Motion (SHM)

  • SHM: displacement varies sinusoidally with time as x(t) = A cos(ωt + φ)
  • Amplitude (A): maximum displacement from mean position
  • Angular frequency (ω): related to period by ω = 2π/T
3

SHM and Uniform Circular Motion

  • SHM is projection of uniform circular motion on any diameter
  • Reference particle moves in circle with radius A and angular speed ω
  • x-projection: x(t) = A cos(ωt + φ)
4

Velocity and Acceleration in SHM

  • Velocity: v(t) = -ωA sin(ωt + φ)
  • Acceleration: a(t) = -ω²A cos(ωt + φ) = -ω²x(t)
  • Maximum velocity: vₘₐₓ = ωA (at mean position)

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Full Notes

Key Concepts

Motion that repeats itself at regularA special type of oscillatory motionThe maximum displacement from the equilibriumRelated to period by ω =Phase (ωt + φ) determines

Frequently Asked Questions

What are the important topics in Oscillations for Uttarakhand Board Class 11 Physics?
Oscillations covers several key topics that are frequently asked in Uttarakhand Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Oscillations — Uttarakhand Board Class 11 Physics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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