In the given figure | SIMPLE HARMONIC MOTION | JEE-MAIN 2021

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JEE MAIN 2021

24-02-21 S1

Question

In the given figure, a mass M is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the spring is k. The mass oscillates on a frictionless surface with time period T and amplitude A. When the mass is in equilibrium position, as shown in the figure, another mass m is gently fixed upon it. The new amplitude of oscillation will be :

Select the correct option:

A

$A \sqrt{\frac{M-m}{M}}$

B

$A \sqrt{\frac{M}{M+m}}$

C

$A_1 \sqrt{\frac{M+m}{M}}$

D

$A \sqrt{\frac{M}{M-m}}$

✓ Correct! Well done.

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