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

Physics & Space Science

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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°

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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

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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

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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.

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