2 A mercury lamp radiates 5 W of energy uniformly in all directions in its blue spectral line (λ 435.8 nm) H.P. Mercury Spectral Lamp 100 80 60 (a) At what rate are blue photons generated in the lamp (in photons per second)? (b) Assuming the light is emitted uniformly in al40 directions, at what distance from the lamp will the rate of green photons flowing outward (the20 "intensity") be 10% photons.cm-2.s-1 (î.e. 1 million photons per square cm per second)? This is approximately the apparent brightness of a bright star. 800 600 Wavelength (nm) 400 500 700
2 A mercury lamp radiates 5 W of energy uniformly in all directions in its blue spectral line (λ 435.8 nm) H.P. Mercury Spectral Lamp 100 80 60 (a) At what rate are blue photons generated in the lamp (in photons per second)? (b) Assuming the light is emitted uniformly in al40 directions, at what distance from the lamp will the rate of green photons flowing outward (the20 "intensity") be 10% photons.cm-2.s-1 (î.e. 1 million photons per square cm per second)? This is approximately the apparent brightness of a bright star. 800 600 Wavelength (nm) 400 500 700
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter29: Introduction To Quantum Physics
Section: Chapter Questions
Problem 33PE: (a) If the power output of a 650-kHz radio station is 50.0 kW, how many photons per second are...
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