How to derive speed = wavelength …

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How to derive speed = wavelength * frequency

Posted by Tanveer Singh 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Shweta Gulati 7 years, 3 months ago

As we know, speed= Distance travelled/Time taken

Suppose a wave travels a distance $λ$ which is its wavelength in time T,

v = $λ$ / T

Here T is the time taken by one wave. 1/T becomes the number of waves per second and is known as frequency of the wave.

Thus v = $λ$ x f

i.e. Speed = Wavelength x Frequency

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