A source oscillates with a frequency of and the wave propagates at

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

A source oscillates with a frequency of

25\text{ Hz}

and the wave propagates at

300\text{ m s}^{-1}

. Two points

A

and

B

are located at distances

10\text{ m}

and

16\text{ m}

from the source. The phase difference between

A

and

B

is (1)

\frac{\pi}{4}

(2)

\frac{\pi}{2}

(3)

\pi

(4)

2\pi