Question

If the period of a certain wave (wavelength = 4.5 m) is 2 seconds, what is the speed of the wave?

0.44 m/s
1.1 m/s
9.0 m/s
2.3 m/s

Answer 1

2.25m/s

Step-by-step explanation:

wavelength=4.5m

period=2sec

frequency= 1/period

=1/2

speed= wavelength×wave frequency

=4.5×1/2

=2.25 m/s

so, none of the options are correct

Answer 2

2.3 m/s

Step-by-step explanation:

I took the test.