The wavelength of a wave traveling with a velocity of 420 ms-1 is 42 m. what is its period?
-
A.
1.2 s -
B.
1.0 s -
C.
0.5 s -
D.
0.1 s
Correct Answer: Option D
Explanation
V = fλ
f = (v)/λ = (420)/42 = 10 HZ
Period, T = (1)/F = (1)/10 = 0.1 secs
V = fλ
f = (v)/λ = (420)/42 = 10 HZ
Period, T = (1)/F = (1)/10 = 0.1 secs