Waves Test - 35...

The velocity of sound in a gas is 4 times that in air at the same temperature. When a tunning fork is sounded in air a wave of frequency 480 and wavelength. $${\lambda}_{1}$$ is produced. The same fork is sounded in the gas and if $${\lambda}_{2}$$ is the wavelength of the wave, then $${{\lambda}_{2}}/{{\lambda}_{1}}$$ is

The depth of the troughs of a wave is called its

Figure shows the shape of a part of a long string in which transverse waves are produced. Which pair of particles are in phase?

A ripple is created in water. The amplitude at a distance of 5 cm from the point where the sound ripple was created is 4 cm. Ignoring damping, what will be the amplitude at the distance of 10 cm.

The frequency of light whose wave length is $$5000{A}^{}$$ is

An anchored boat is rocked by waves whose crests are 100 m apart and whose velocity is $$25\:m/s$$. How often do the crests reach the boat?

A wave travels at a speed of $$798 m{s}^{-1}$$. If its wavelength is $$3m$$. what is the frequency of the wave? Will it be audible or not? 

A loud rattling sound is produced by a car at some particular speed. This phenomenon is due to

A boat at anchor is rocked by waves whose crests are $$100\  m$$ apart and velocity is $$25 \ m/sec$$. The boat bounces up once in every :

A sound wave is a pressure wave; regions of high (compressions) and low pressure (rarefactions) are established as the result of the vibrations of the sound source. These compressions and rarefactions result because sound: