Speed Of Sound

The time of reverberation of a room is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double those of room A?

1. 2

2. 4

3. $\frac{1}{2}$

4. 1

Sound waves travel at m/s through warm air and at m/s through brass. The wavelength of a Hz acoustic wave as it enters brass from warm air:

1.	increase by a factor of .
2.	increase by a factor of .
3.	decrease by a factor of .
4.	decrease by a factor of .

of gas occupies at NTP. The specific heat capacity of the gas at a constant volume is If the speed of sound in the gas at NTP is then the molar heat capacity at constant pressure will be:
( )

1.		2.
3.		4.

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of , to successive resonances are produced at cm and cm column length. If the frequency of the tuning fork is Hz, the velocity of sound in air at is:

1.	m/s	2.	m/s
3.	m/s	4.	m/s