Question

what is the frequency of a photon which has a wavelength of 2.5×10^-8​

Answer 1

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Frequency of the Photon could be represented by the formula: c =λν

λ =2.5 x 10⁻⁸ m

c= 3 x 10⁸ m/s

So, ν = c/λ

= $\frac{3x10^8}{2.5x10^-^8}$ = 1.2  x 10¹⁶ Hz