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# Calculate Photon Energy: UV Light

APPH12-XLK4O2

Which one of the following is closest to the energy of a photon of ultraviolet light with a wavelength of 300 nm?

A

$2\times { 10 }^{ -43 }\text{ J}$

B

$2\times { 10 }^{ -34 }\text{ J}$

C

$7\times { 10 }^{ -33 }\text{ J}$

D

$7\times { 10 }^{ -19 }\text{ J}$