A wave has a wavelength of 1.5 m/s and a frequency of 3 Hz. What is its speed?

wavelength-speed

#1

A wave has a wavelength of 1.5 m/s and a frequency of 3 Hz. What is its speed?

4.5 Hz

0.5 Hz

2 Hz

1.5 Hz

Answer:

Correction in the question: The units of wavelength should be m, not m/s. And, the units of the calculated speed of wavelength should be m/s and not Hz.

Wavelength of wave (λ) = 1.5 m
Frequency of wave (ν) = 3 Hz

Let the speed of the wave be denoted by the symbol, c.
So, the required equation is,
c=λ×ν
c = 1.5 x 3
So, the speed of the wave is = c = 4.5 m/s.