What is the energy of a photon that has a wavelength of 13.2 nm?

1 Answer
Manish Bhardwaj
Apr 11, 2016

1.507 x #10^-15# J

Explanation:

Energy of a photon is calculated using the formula

# E_p# = ( Plancks constant x speed of light / wavelength)

# E_p# = ( 6.634 x #10^ -34# J .s x 3 x #10 ^8# m#s^-1# ) / 13.2 x #10^-9# m

# E_p# = ( 6.634 x #10^ -34# J .s m #s^-1# / 13.2 x #10^-9# m

# E_p# = ( 19.902 x #10^ -26# J .s m #s^-1#) / 13.2 x #10^-9# m

# E_p# = ( 19.902 x #10^ -26# J .s m #s^-1#) / 13.2 x #10^-9# m 

 = 1.507 x #10^-15# J
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