Question

Calculate the wavelength, frequency and wave number of a light wave whose period is $2.0 \times 10^{-10} s$ .

Answer 1

hey

Given period = 2.0 x 10-10s

We know, Frequency (ν) of light ,therefore putting the values .we get

We also know

Where,c = velocity of light in vacuum = 3×108 m/s

Substituting the value in the given expression of λ, we get

5.0 x 10^-9 s

Wave number of light

16.66

Answer 2

Explanation:

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