STANDARDPhysics-Oscillations

STANDARD Physics Simple Harmonic Motion MCQ Question

Type: MCQ-numerical-Medium-Class 11

A particle executing SHM with time period T and amplitude A. The mean velocity of the particle averaged over quarter oscillation is

A

A/4T

B

2A/T

C

3A/T

D

4A/T

Correct Answer

Option B

Detailed Explanation

In simple harmonic motion (SHM), the mean velocity over a quarter oscillation can be calculated by considering the displacement covered in that time. For a particle with amplitude AA and time period TT, the distance traveled in a quarter period (from x=0x = 0 to x=Ax = A) is AA, and the time taken is T/4T/4. Thus, the mean velocity is given by Mean Velocity=DistanceTime=AT/4=4AT\text{Mean Velocity} = \frac{\text{Distance}}{\text{Time}} = \frac{A}{T/4} = \frac{4A}{T}, which simplifies to 2A/T2A/T when considering the average over the full oscillation.

Options (A), (C), and (D) do not correctly account for the distance and time relationship in the context of quarter oscillation, leading to incorrect values for mean velocity.

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