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AHHH photoelectric effect? WHAT ??!!?
Well, we discussed briefly in class, and like .. I can not find information my book. Can you help please? The question is: Suppose you are an engineer designing a spacecraft to land on a faraway planet. You want to use a switch works by the photoelectric effect. The metal to be used in the device requires 6.7 x 10 ^ -19 kJ / atom to remove an electron. You know the atmosphere of world in which the device should work all filter lengths wavelength of light equal to 540 nm. The device will operate on the planet in question? Why Why or why not?
It's a great question: To solve this problem, you must determine whether the light with a wavelength of 540nm or more photons with energy greater than 6.7 x 10 ^ -19 kJ / atom, E = hv (v = nu = frequency of light) lv = c, where c = speed of light, lamba L, wavelength of light, v = df = Solve for freq and solve for E, and you have the answer.
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