Question

4.
If the amplitude of oscillation of a simple pendulum
is increased by 20%, then percentage change in
the time period will be
(1) Zero
(2) 10%
(3) 10.5%
(4) 11%​

Answer 1

Answer:

Percentage change in time period is Zero

Explanation:

time period of simple pendulum do not depend upon mass of oscillating object and amplitude of oscillation.

It depend upon length of pendulum and acceleration due to gravity.

From simple pendulum equation

maximum velocity and maximum acceleration at mean equilibrium position

$V_{max}=A\omega$

$a_{max} =-A\omega^{2}$

here A is amplitude of oscillation

from above question on increase in 20% amplitude

maximum velocity and maximum acceleration at mean equilibrium will increase by 20% because $V_{max}$ and $a_{max}$ is linearly depend upon on amplitude.

Answer 2

Answer:

correct answer is zero

Explanation:

Hope it will help you