OSCILLATION & WAVE

Which of the following statements regarding simple harmonic motion is TRUE?

• Acceleration is constant

• Amplitude varies with time

• Frequency decreases with time

• Speed is maximum at the equilibrium position

In which group below do all the three quantities remain constant when a particle moves in simple harmonic motion.

• Acceleration, force and total energy

• Force, total energy and amplitude

• Total energy, amplitude and angular frequency

• Amplitude, angular frequency and acceleration

For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit time?

• Amplitude

• Period

• Frequency

• Revolution

Which of the following statements is FALSE about a particle that performs simple harmonic motion?

• There is a no energy lost to sustain the motion

• It is equilibrium at the center of its path due to zero acceleration

• The motion traces a circular path

• It is in equilibrium at the end of its path due to zero velocity

1. Which of the following statements is TRUE about the period of oscillation of a pendulum.

• Period does not depend on the gravitational acceleration

• Period does not depend on the mass of the bob

• Period does not depend on the pendulum’s initial angular 

  displacement

• Period does not depend on the length of string

1. The distance between two consecutive compressions and rarefactions is termed as ...

• 1. frequency

• 1. amplitude

• 1. wavelength

• wave point

Which of the following is TRUE about particle vibration in a progressive wave?

• 1. Near points are in phase

• 1. Only certain points vibrate

• 1. Varying amplitude for all points

• 1. Constant amplitude for all points

1. The principle of superposition states that ...

• 1. Two stationary waves superimpose to produce a progressive wave. 

• 1. The total energy of the resultant wave is the sum of the energy carried by the individual wave.

• 1. The frequency of the resultant wave is the difference between the frequencies of the individual waves.

• 1. The displacement at a point of the resultant wave is the sum of the displacement of the individual waves acting at that point.

Nodes and antinodes occurs in ...

• single waves

• longitudinal waves

• stationary waves

• progressive waves

11. In a resonating pipe which is open at one end and closed at the other, there ...

• 1. are displacement nodes at each end.

• 1. are displacement antinodes at each end.

• 1. is a displacement node at the closed end and a displacement antinode at the open end. 

• 1. is a displacement node at the open end and a displacement antinode at the closed end