Find the speed of a wave by multiplying its frequency by its
(a) period.
(b) wavelength.
(c) amplitude.
(d) None of these.
The wave speed is defined as the speed with which a wave passes a particular point.
From the above relation, we can say that the speed of a wave can be found by multiplying its frequency by its wavelength.
Hence, the correct answer is option (b).
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