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B.
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D.
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Earlier discussion
6 older comments kept for context.
jeremiah ekeke
V=Fλ
Where v is speed,
F= frequency
λ= wavelength
But F=1/T
T= period (time)
V=λ/T
V=10m/s
T=0.5s
λ=?
Substituting we have
10=λ/0.5
Cross multiply we have
10x0.5=λ
λ=5m
Sofia Oji
The distance btw two successive and trough is the wavelength, λ
Recall, T=1/F
So, F=1/T
F=1/0.5 =2
V=fλ
λ=v/f =10/2 =5
So, λ=5m
Honour
No it should be B.
Wavelength = velocity/period
=10/0.5
=20m
EX PSYCHO
There were only velocity and period(T) given so maybe you should first solve out for the frequency which is 1/T stated in the foremost of the comment then you will get your right answer
EX PSYCHO
There were only period (T) and velocity so you are wrong by calculating frequency with respect to the time given and f = 1/T
Temmy
D=vt
D=10*0.5
D=5