Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect. The intensity of the incident light and the temperature of the metal are held constant. Assuming that the initial light incident on the metal surface causes electrons to be ejected from the metal, what happens if the frequency of the incident light is increased? Check all that apply. A. The work function of the metal increases. B. The number of electrons emitted from the metal per second increases. C. The maximum speed of the emitted electrons increases. D. The stopping potential increases.
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Physics, 22.06.2019 11:00, zhjzjzzj6325
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 13:30, basketking333
Select the three ways that the parallel-plate capacitor differs from a car battery.
Answers: 1
Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric e...
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