Question

A wave has a wavelength of 0.5 m and a frequency of 5.0 Hz. What is the speed of the wave?

A. 2.5 m/s
B. 10 m/s
C. 0.1 m/s
D. 4.5 m/s

Answer 1

v = fλ
v= 5.0 Hz times 0.5m
v=2.5 m/s
The answer is A. 2.5 m/s .

Answer 2

The correct option is (A) 2.5 m/s

Step-by-step explanation:
Since,

v = fλ ---- (1)

where v = speed of the wave
f = frequency of the wave = 5 Hz
λ = wavelength of the wave = 0.5

Plug in the value in (1):
(1) => v = 5 * 0.5
v = 2.5 m/s