Oscillations And Waves Mock Tests

A train moving at 30 m/s sounds a whistle of frequency 1000 Hz. The apparent frequency as heard by a passenger on another train approaching at 20 m/s is: (speed of sound = 340 m/s)

A source of sound emits a frequency of 1000 Hz and moves towards a stationary observer with speed 30 m/s. The apparent frequency heard by the observer is: (speed of sound = 330 m/s)

A particle executes simple harmonic motion with amplitude 5 cm and angular frequency 2 rad/s. The maximum speed of the particle is:

The phenomenon of beats is caused by:

In a standing wave on a string, the distance between two consecutive nodes is:

A particle executes simple harmonic motion with amplitude 0.1 m and frequency 5 Hz. The maximum speed of the particle is:

A simple pendulum has a time period of 2 s on Earth. If it is taken to a height equal to the Earth's radius above the surface, its time period becomes approximately: (g ∝ 1/r²)

Two identical springs each of spring constant k are connected in series. The effective spring constant of the combination is: