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a) how many photons per second, on the average, arrive at a target irradiated by this beam?
b) how fast does a hydrogen atom have to travel in order to have the same momentum as that of the photon?

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Q1

Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW.

(a) Find the energy and momentum of each photon in the light beam,

(b) How many photons per second, on the average, arrive at a target irradiated by this beam? (Assume the beam to have uniform cross-section which is less than the target area), and

(c) How fast does a hydrogen atom have to travel in order to have the same momentum as that of the photon?

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Q2

Monochromaticlight of wavelength 632.8 nm is produced by ahelium-neon laser. The power emitted is 9.42 mW.

(a) Find theenergy and momentum of each photon in the light beam,

(b) How manyphotons per second, on the average, arrive at a target irradiated bythis beam? (Assume the beam to have uniform cross-section which isless than the target area), and

(c) How fastdoes a hydrogen atom have to travel in order to have the samemomentum as that of the photon?

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Q3
A) Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW .Find the energy and momentum of each photon in the light beam.

B) Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW. How many photons per second, on the average, arrive at a target irradiated by this beam? (Assume the beam to have uniform cross-section which is less than the target area).

C) Monochromatic light of wavelength 632.8 nm is produced by a helium − neon laser. The power emitted is 9.42 mW. How fast does a hydrogen atom have to travel in order to have the same momentum as that of the photon?"
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Q4

Monochromatic light of wavelength 632.8nm is produced by a Helium-Neon laser. The power emitted is 9.42mW. How many photons per second, on average, arrive at a target irradiated by this beam?


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Q5
Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW.
How many photons per second, on average, arrive at a target irradiated by this beam? (Assume the beam to have a uniform cross-section which is less than the target area).
View Solution