In Einstein’s analysis, a photon striking the surface of a conductor is absorbed by an electron. Which statement describes the set of energy transfers that could occur?

Question

A. The electron receives either all or none of the photon's energy.
B. The electron may receive any fraction of the photon's energy, including all or none of it. *
C. The electron may receive only certain quantized amounts of the photon's energy, including all or none of it.
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A photon has an energy of 5.66 eV. What is its wavelength? Let Planck’s constant h = 4.136 × 10^−15 eV · s, and the speed of light c = 3.00 × 10^8 m/s.
A. 219 nm
B. 384 nm
C. 513 nm
D. 710 nm* (I'm torn between D and C, but I'm going with D for this question)
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8. Glycerine has an index of refraction of 1.473, and liquid water has an index of refraction of 1.333. What is the critical angle for light passing from glycerine to liquid water? *

8.049°
25.71°
64.82°*
19.45°
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The line spectrum of an atom includes a band of red light of wavelength 705 nm (705 x 10^-9 m). This band corresponds to what energy transition within the atom? Let Planck’s constant h = 4.136 × 10−15 eV • s, and the speed of light c = 3.00 × 10^8 m/s. *

an increase of 3.87 eV*
a decrease of 2.27 eV
a decrease of 1.76 eV
a decrease of 9.06 eV
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The index of refraction of medium 1 is 2.3 and the index of refraction for medium 2 is 1.6. What is the critical angle for light traveling within medium 1 toward medium 2?
A. 40°*
B. 70°
C. 14°
D. 44°

Please help me double check my answers. Thank you.

Answer 1

The index of refraction of medium 1 is 2.3 and the index of refraction for medium 2 is 1.6. What is the critical angle for light traveling within medium 1 toward medium 2?
A. 40°*
B. 70°
C. 14°
D. 44°
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