Indian Navy 10+2 B.Tech Cadet Oscillations — practice questions

Explore 3 free Oscillations questions in Indian Navy 10+2 B.Tech Cadet Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Oscillations questions and exercises with answers

Showing questions 1–3 of 3.

The general equation for SHM is:Read the answer and worked solution →A particle has SHM with x = A cos(ωt). At t = 0, the particle is at:Read the answer and worked solution →Order the steps of EM wave generation by an accelerating chargeRead the answer and worked solution →

Worked practice questions

The general equation for SHM is:

x = A sin(ωt + φ)
x = A e^(ωt)
x = A t²
x = A + ωt

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Correct answer: A. x = A sin(ωt + φ)

x(t) = A sin(ωt + φ), where A is amplitude, ω is angular frequency, φ is phase. This satisfies d²x/dt² = -ω²x, the SHM equation.

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A particle has SHM with x = A cos(ωt). At t = 0, the particle is at:

x = A/2
Random
x = A (extreme position, v = 0)
x = 0 with maximum velocity

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Correct answer: C. x = A (extreme position, v = 0)

At t = 0: x = A cos(0) = A. So particle starts from extreme position (x = A). Velocity v = -Aω sin(ωt), at t=0 is 0. Particle starts from rest at maximum displacement.

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Order the steps of EM wave generation by an accelerating charge

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Steps

Charge accelerates, creating a changing electric field
Changing E-field induces a changing magnetic field
Changing B-field induces a changing E-field further away
The coupled E and B fields propagate outward as a wave
Wave travels in vacuum at c = 3×10⁸ m/s

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