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Question

Question: The number of photons of light having wavelength 100 nm which can provide 1.00 J energy is nearly...

The number of photons of light having wavelength 100 nm which can provide 1.00 J energy is nearly

A

107 photons

B

5 ×1018 photons

C

5 × 1017photons

D

5 × 107photons

Answer

5 × 1017photons

Explanation

Solution

Apply E = nhcλ\frac{nhc}{\lambda}