Waves Test - 6...

Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

A particle on the trough of a wave at any instant will come to the mean position after a time

The ratio of velocity of sound in oxygen to that in hydrogen at same temperature and pressure is approximately

If v_m is the velocity of sound in moist air, V_d is the velocity of sound in dry air, under identical conditions of pressure and temperature

In sine wave, minimum distance between 2 particles having same speed, is always

The extension in a string, obeying Hooke’s law, is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5x, the speed of sound will be

The equation of a simple harmonic wave is given by y = 6sin 2π (2t – 0.1x), where x and y are in mm and t is in second. The phase difference between two particles 2 mm apart at any instant is

If wave y = a cos (ωt + kx) is moving along X–axis, the shape of pulse at t = 0 and t = 2 s

The period of a wave is 360 ms ^-1 and frequency is 500 Hz. Phase difference between two consecutive particles is 60°, then path difference between them will be