Physics, asked by Jak909, 9 months ago

Calculate no. of photons of light with a wavelength of 4000 pm that provides 1 J of energy.

Answers

Answered by ashwinh2002
14

Answer:

0.2 x 10^{17}

Explanation:

E = h c n/ λ (n is number of photons)

n = E λ/ h c

  = 1 x 4000 x 10^{-12} / 6.68 x 10^{-34} x 3 x 10^{8}

  =  0.2 x 10^{17} photons

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