CBSE Class 11 Physics Oscillations Quiz 2

1. The acceleration of particle executing S.H.M. when it is at mean position is

A Infinite B Varies C Maximum D Zero

2. In SHM, graph of which of the following is a straight line?

A T.E. against displacement B P.E. against displacement C Acceleration against time D Velocity against displacement

3. The period of thin magnet is 4 sec. if it is divided into two equal halves then the time period of each part will be

A 4 sec B 1 sec C 2 sec D 8 sec

4. If the length of seconds pendulum is increased by 2%, how may seconds it will lose per day?

A 3427 sec B 3727 sec C 3927 sec D 864 sec

5. Length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time - period of the pendulum of increased length is

A 10% B 1% C 21% D 42%

6. If a simple harmonic oscillator has got a displacement of 0.02 m and acceleration equal to 2.0 ms^-2 at any time, the angular frequency of the oscillator is equal to

A 10 rad s^-1 B 1 rad s^-1 C 100 rad s^-1 D 1 rad s^-1

7. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hall near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time -period of the oscillation would

A first decrease and then increase to the original value B first increase and then decrease to the original value C increase towards a saturation value D remain unchanged

8. The maximum velocity for particle in SHM is 0.16 m/s and maximum acceleration is 0.64 m/s². The amplitude is

A 4 × 10^-2 m B 4 × 10^-1 m C 4 × 10 m D 4 × 100 m

9. The period of a simple harmonic oscillator is 2 sec. The ratio of its maximum velocity and maximum acceleration is

A ∏ B 1/∏ C 2∏ D 4

10. If a hole is bored along the diameter of the earth and a stone is dropped into the hole

A The stone reaches the centre of the earth and stops there B The stone reaches the other side of the earth and stops there C The stone executes simple harmonic motion about the centre of the earth D The stone reaches the other side of the earth and escapes into space