A 12.0 mW helium-neon laser (λ = 632.8 nm) emits a beam of circular cross-section with...
A 12.0 mW helium-neon laser (λ = 632.8 nm) emits a beam of circular cross-section with a diameter of 2.60 mm.
(a) Find the maximum electric field in the beam.
kN/C
(b) What total energy is contained in a 1.00 m length of the
beam?
pJ
(c) Find the momentum carried by a 1.00 m length of the beam.
kg·m/s
Homework Answers
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A 12.0 mW helium-neon laser (λ = 632.8 nm) emits a beam
of circular cross-section with...
A helium-neon laser emits light that has a wavelength of 632.8 nm. The circular aperture through...
A helium-neon laser emits light that has a wavelength of 632.8 nm. The circular aperture through which the beam emerges has a diameter of 0.200 cm. Estimate the diameter of the beam 14.0 km from the laser. m
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A helium-neon laser emits light of wavelength 632.8 nm and has a power output of 2.0...
A helium-neon laser emits light of wavelength 632.8 nm and has a power output of 2.0 mW. How many photons are emitted per second by this laser? ________ photons/s
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A 7.20 mW helium neon laser emits a visible laser beam with a wavelength of 633 nm. How many photons are emitted per second?
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A helium-neon laser emits a 2.0-mm-diameter laser beam with a power of 2.0 mW . Part A What is the amplitude of the electric field of the light wave? Express your answer with the appropriate units. Part B What is the amplitude of the magnetic field of the light wave? Express your answer with the appropriate units.
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A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.1-mm-diameter beam with a power of 1.0 mW . A. What is the amplitude of the oscillating electric field in the laser beam? Express your answer with the appropriate units. B. What is the amplitude of the oscillating magnetic field in the laser beam? Express your answer with the appropriate units.
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