If the speed of a wave is 340 m s^-1 and its frequency is 1700 Hz, then wavelength λ for this wave in cm will be

(a)

34

(b)

20

(c)

15

(d)

0.2

The maximum speed of vibrations which produces audible sound will be in

(a)

seawater

(b)

ground glass

(c)

dry air

(d)

Human blood

The sound waves travel faster

(a)

in liquids

(b)

in gases

(c)

in solids

(d)

in vacuum

The speeds of sound in four different media are given below. Which of the following is the most likely speed in ms^-1 with which the two underwater whales in a sea can talk to each other when separated by a large distance?

(a)

5170

(b)

1280

(c)

340

(d)

1530

The velocities of sound waves in four media P, O, Q, R and S are 18,00 km/h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which could be a liquid medium?

(a)

R

(b)

Q

(c)

P

(d)

S