Question

4
Question
(1 Point)
4.The energy of light of wavelength 45nm is
a.6.67x10-15
b.6.67x1011
c.4.42x10-18
d.4.42x10-15
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Answer 1

Answer:

${4.2} \times 10^{ - 18}$

Explanation:

The relationship between the energy of light and its wavelength is as given below.

E= hc/λ

Substitute values in the above expression.

E=$6.63×10^{ - 34}</p><p> ×3×10^{8}$

divided by 45×10^−9

=4.4×10 ^−18

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