The frequency of a rod is 200 Hz. If the velocity of sound in air is 340 ms^–1, the wavelength of the sound produced is :

A stone is dropped into a lake from a tower 500 metre high. The sound of the splash will be heard by the man approximately after 

[Given : Speed of sound = 340 m/s ]

When sound waves travel from air to water, which of the following remains constant 

The echo of a gunshot is heard 8 sec. after the gun is fired. How far from him is the surface that reflects the sound? (velocity of sound in air = 350 m/s) :

A man sets his watch by the sound of a siren placed at a distance 1 km away. If the velocity of sound is 330 m/s

The velocity of sound in air is:

The frequency of a sound wave is n and its velocity is v. If the frequency is increased to 4n, the velocity of the wave will be 

The speed of a wave in a certain medium is 960 m/s. If 3600 waves pass over a certain point of the medium in 1 minute, the wavelength is :

The speed of sound at a constant temperature depends on:

Sound velocity is maximum in :

The minimum distance of reflector surface from the source for listening the echo of sound is :

The type of waves that can be propagated through solid is :

Velocity of sound in air

I. Increases with temperature

II. Decreases with temperature

III. Increase with pressure

IV. Is independent of pressure

V. Is independent of temperature

Choose the correct answer.

If at same temperature and pressure, the densities for two diatomic gases are respectively d₁ and d₂, then the ratio of velocities of sound in these gases will be :

The velocity of sound measured in hydrogen and oxygen gas at a given temperature will be in the ratio :

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 

A source of the sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in the air is 300 m/s. The frequency of sound recorded by an observer who is standing in the air is : 

An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If the velocity of sound in air is 330 m/s, the wavelength and frequency of waves in air are: 

It is possible to distinguish between the transverse and longitudinal waves by studying the property of :

Water waves are 

The waves in which the particles of the medium vibrate in a direction perpendicular to the direction of wave motion is known as 

What is the phase difference between two successive crests in the wave?

A wave of the frequency of 500 Hz has a velocity of 360 m/sec. The distance between two nearest points 60° out of phase is :

Sound waves of wavelength greater than that of audible sound are called :

The ratio of masses of nitrogen and oxygen is 14:16. The temperature at which the speed of sound in nitrogen will be same at that in oxygen at 55°C is -

A wavelength 0.60 cm is produced in air and it travels at a speed of 300 ms^–1. It will be an 

A point source emits sound equally in all directions in a non-absorbing medium. Two points P and Q are at a distance of 2m and 3m respectively from the source. The ratio of the intensities of the waves at P and Q is :

An observer standing near the seashore observes 54 waves per minute. If the wavelength of the water wave is 10m then the velocity of a water wave is :

The equation of a wave is $y=2\sin \pi (0.5x-200t)$, where x and y are expressed in cm and t in sec. The wave velocity is :

Equation of a progressive wave is given by

$y=0.2\cos \left(0.04\pi t+0.02\pi x-\frac{{\displaystyle \pi }}{{\displaystyle 6}}\right)$

The distance is expressed in cm and time in second. What will be the minimum distance between two particles having the phase difference of π/2 :