Question

Calculate energy of radiation having wavelength 400nm

Answer 1

Answer:

It is very simple and it's calculation is so easy we energy formula

Answer 2

Energy of radiation having wavelength 400nm is 1.29077× $10^{-18}$Joules

Given

Radiation having wavelength 400nm is given.

To Find

We need to find energy of radiation.

Solution

We know

        E=hc/λ.

In the equation,

h is the Planck's constant.

c is the speed of light .

λ the wavelength of the radiation.

Here

   h = 6.62607015 × 10-34 m2 kg / s

   c =  c = 3x$10^{8}$ m/s

   ∧ = 400 nm

Substituting values in equation

  E =  ( 6.62607015 × 10-34 m2 kg / s ×  3x$10^{8}$ m/s ) / 400 nm

     = 1.29077× $10^{-18}$Joules

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