The Intensity Of A Sound Wave Gets Reduced By 20% On Passing Through A Slab. The Reduction In Intensity On Passage Through Two Such Consecutive Slabs Is:

The speed of a wave in a medium is 960 m/s. If 3600 waves are passing through a point in the medium in  minute, then calculate the wavelength.

What is the frequency of radio waves transmitted by a station, if the wavelength of three waves is 300 meter?

At a pressure of 10⁵N/m² the volume strain of water is  Calculate the speed of sound in water. (Density of water = kg/m³).

At normal temperature and pressure the speed of sound in air is 332 m/s. What will be the speed of sound in hydrogen (i) at normal temperature and pressure, (ii) at 546^oC temperature and 3 atmospheric pressure? (Air is 16 times heavier than hydrogen).

The speed of sound in oxygen is 635 m/s. Find out the speed of sound in a mixture of hydrogen and oxygen in which the ratio of hydrogen and oxygen volumes is 4:1.

Find out the ratio of the velocity of sound in helium and in nitrogen gases at 300 K temperature. Molecular weights of helium and nitrogen are 4 and 28 respectively.

At what temperature will the speed of sound in air be double of its speed at 57^oC?

At what temperature the speed of sound in oxygen will be same as that in nitrogen at 14^oC? The molecular weights of oxygen and nitrogen are 32 and 28 respectively.

A wave whose amplitude is 0.07 m and frequency is 400 hertz travels in a medium with a velocity of 300 m/s. Determine the displacement equation of oscillation at a distance x metre from the source due to this wave.

A is singing a note and at the same time B is singing a note with exactly one-eighth the frequency of the note of A. The energies of the two sounds are equal. The amplitude of the note of B is: