a laser emits light of wavelength 1.063 micrometer. The output power is 20 watt. what will be the energy emitted in 10 min.?
Answers
Answered by
5
Explanation:
Answer
The energy of a photon is E=
λ
hc
where h= Planck's constant, c= velocity of light.
So, E=
632.8×10
−9
(6.62×10
−34
)(3×10
8
)
=3.14×10
−19
J
Total power 1 mW means the energy per sec is given 1mJ=10
−3
J
Thus, number of photons emitted per sec =
3.14×10
−19
10
−3
=3.18×10
15
Answered by
0
Answer:f
Explanation:f
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