Question

. What is the energy of a photon that has a wavelength of 12.3 nm?
(i) 4.42 x 10-2 J (ii) 1.6x 10-17 J
(11) 1.51 × 10-17) (iv) 1.99 × 10-25 J​

Answer 1

Answer:

ii is the answer

Explanation:

AsE=hc/lambda

and h is planck constant having value 6.626×10^-34

c=2.998 10^8 speed of light

lambda i.e. wavelength 12.3×10^-9

therefore after putting the value 6.626×10^-34×2.998×10^8/12.3×10^-9=

=1.61×10^-9m

hope it is helpful

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