The ionization energy of the hydrogen atom is 13.6 eV. What is the energy of the n = 5 state?
a. –0.544 eV
c. 0.544 eV
b. 0.378 eV
d. –0.378 eV
A
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Total Internal Reflection: The speed of light in a material is 0.41 c. What is the critical angle of a light ray at the interface between the material and a vacuum?
A. 24° B. 17° C. 19° D. 22°
Velma is in a train moving north at 20 m/s. She throws a stone toward the rear of the train, at 5 m/s relative to herself. Mort, standing beside the tracks, sees the stone move
A) south at 15 m/s. B) south at 25 m/s. C) north at 25 m/s. D) north at 15 m/s. E) north at 20 m/s.
What is the photoelectric effect?
a. The mechanism by which a camera works. b. The effect seen by bombarding a metal surface with an electron beam. c. The production of light by an electric discharge through a gas. d. The emission of electrons from a clean metal surface when light shines on the surface. e. The fact that electrons bounce off any surface when light shines on it.
At any instant in time, it is possible to specify simultaneously the position and the momentum of a particle to arbitrarily high precision
Indicate whether the statement is true or false