ExamPlay Dark Logo
登入

WAEC - Physics (2006 - No. 30)

The distance between the successive crests of a wave travelling at 20ms\(^{-1}\) is 25cm. Calculate the frequency of the wave
0.8Hz
5.0Hz
50.0Hz
80.0hz

解释

f = \(\frac{v}{\lambda} = \frac{20}{0.25} = 80Hz\)

评论 (0)

广告