West Bengal Police Constable Special Mock Test
Physics - Wave
1 / 10
1) What is the speed of sound in dry air at 0 degrees Celsius?
2 / 10
2) What is the distance between two consecutive crests or troughs called?
3 / 10
3) In an open pipe, the first overtone frequency is what multiple of the fundamental frequency?
4 / 10
4) A wave travels along a string with a speed of 340 m/s. If the frequency of the wave is 170 Hz, what is the wavelength of the wave?
5 / 10
5) What is the unit of period?
6 / 10
6) What is the unit of amplitude?
7 / 10
7) What is the spreading out of a wave as it passes through a narrow opening called?
8 / 10
8) If the amplitude of a sound wave is decreased by half, what happens to the sound intensity level in decibels?
9 / 10
9) What type of wave requires a medium to travel through?
10 / 10
10) What is the maximum displacement of a particle from its equilibrium position called?
Your score is
Restart quiz