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007 (part 1 of 2) 10.0 points A black wall absorbs all the photons that strike it. How many photons per second would hav
Posted: Mon May 09, 2022 6:59 pm
by answerhappygod
- 007 Part 1 Of 2 10 0 Points A Black Wall Absorbs All The Photons That Strike It How Many Photons Per Second Would Hav 1 (33.34 KiB) Viewed 35 times
007 (part 1 of 2) 10.0 points A black wall absorbs all the photons that strike it. How many photons per second would have to be emitted bye a laser that fires a beam of cross sectional area 2 mm perpendicularly at the wall in order to exert a pressure of 1 atm on the wall? Assume the laser which emits light of wavelength 730 nm. The speed of light is 2.99792 x 108 m/s and Planck's constant is 6.62607 x 10-34 J:s. Answer in units of photons/s. 008 (part 2 of 2) 10.0 points What would be the power energy per unit time) of this beam? Answer in units of W.