Oscillations And Waves Mock Tests

A simple pendulum has a period of 2 seconds on Earth. If it is taken to a place where g is reduced to one-fourth of its value on Earth, the new period will be:

A simple pendulum has a time period of 2 s on Earth. If it is taken to a height equal to Earth's radius, its time period becomes:

A sound source emits waves of frequency 500 Hz and moves toward a stationary observer at 30 m/s. The apparent frequency heard by the observer is: (speed of sound = 330 m/s)

A sound source of frequency 500 Hz is moving away from a stationary observer at a speed of 30 m/s. The apparent frequency heard by the observer is: (speed of sound = 340 m/s)

A tuning fork of frequency 256 Hz produces resonance in a closed organ pipe. If the speed of sound is 330 m/s, the length of the pipe (in fundamental mode) is approximately:

Two identical tuning forks A and B each have a natural frequency of 500 Hz. Fork A is at rest while fork B moves away from A at 30 m/s toward a rigid wall. An observer at A hears beats. The beat frequency heard by the observer is closest to: (Take speed of sound = 330 m/s)

The length of a simple pendulum is increased by 21%. The percentage increase in its time period is:

A particle executes simple harmonic motion with amplitude 0.05 m and frequency 5 Hz. The maximum speed of the particle is: