S.H.M RT

• None of these

A simple harmonic oscillator has time period T. the time taken by it to travel from the extreme position to half the amplitude is;

 

• T/6

• T/4

• T/8

• T/2

The velocity – time graph of a harmonic oscillation is shown in the figure in the following figure. The frequency of oscillation is;

• 25 Hz

• 50 Hz

• 12.25 Hz

• 33.3 Hz

• 0.2

• 0.1

• 0.02

• 0.01

The ratio of the external force acting on a spring to increase in its length is called the

• Applied force

• Spring constant

• A

  mplitude

• none of these

The maximum velocity of mass attached to spring executing SHM is

If in a mass – spring system , spring is replaced by another spring of twice the spring constant in first case, then the time period of the new system will become;

• 2 times

• 4 times

• 0.707 times

A long spring is stretched by 2 cm and its potential energy is U. if the spring is stretched by 10cm the potential energy stored in the would be:

• U/5

• U/25

• 25 U

• 5 U

The acceleration of free fall on the moon is 1/6 of that on the earth. What would be the period on the moon of a simple pendulum which has a period of 1sec on earth ( K.B2002)

• 1/6 sec

• 6 sec

At mean position during S.H.M.

• PE is max & KE is min

• PE is min & KE is max

• Both PE & KE are max

• Both PE & KE are min