A helium-neon laser produces a beam of diameter 1.75 mm, delivering 3.15 x 1018 photons/s. Each photon has a wavelength of 633 nm. (a) Calculate the amplitude of the electric field inside the beam. kv/m (b) Calculate the amplitude of the magnetic field inside the beam. μT (c) If the beam shines perpendicularly onto a perfectly reflecting surface, what force does it exert on the surface? nN (d) If the beam is absorbed by a block of ice at 0°C for 2.10 h, what mass of ice is melted? 9

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A helium-neon laser produces a beam of diameter 1.75 mm, delivering
3.15 x 1018 photons/s. Each photon has a wavelength of 633 nm.
(a) Calculate the amplitude of the electric field inside the beam.
kv/m
(b) Calculate the amplitude of the magnetic field inside the beam.
μT
(c) If the beam shines perpendicularly onto a perfectly reflecting
surface, what force does it exert on the surface?
nN
(d) If the beam is absorbed by a block of ice at 0°C for 2.10 h, what
mass of ice is melted?
g
Transcribed Image Text:A helium-neon laser produces a beam of diameter 1.75 mm, delivering 3.15 x 1018 photons/s. Each photon has a wavelength of 633 nm. (a) Calculate the amplitude of the electric field inside the beam. kv/m (b) Calculate the amplitude of the magnetic field inside the beam. μT (c) If the beam shines perpendicularly onto a perfectly reflecting surface, what force does it exert on the surface? nN (d) If the beam is absorbed by a block of ice at 0°C for 2.10 h, what mass of ice is melted? g
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