44) Natural line broadening can be understood in terms of the A) de Broglie wave
ID: 1620407 • Letter: 4
Question
44) Natural line broadening can be understood in terms of the
A) de Broglie wave length. B) Pauli exclusion principle. C) uncertainty principle. D) quantum numbers. E) Schrodinger wave equation.
True or False?
35) The maximum number of electron states with a principal quantum number n = 3 is 15.
15) Photons are emitted when a bound electron jumps up to a(n) ________ energy state.
A) zero B) higher C) infinite D) lower
16) Which hydrogen spectral series falls in the visible region?
A) Brackett B) Lyman C) Balmer D) Paschen
9) Which of the following is an accurate statement?
A) Infrared photons have enough energy to readily break bonds in a nucleic acid molecule like DNA.
B) In vacuum, ultraviolet photons travel faster than infrared photons.
C) Photons can have positive or negative charge.
D) An ultraviolet photon has more energy than does an infrared photon.
6) Planck's constant
A) determines the value of the gravitational constant.
B) sets a lower limit to the amount of energy that can be absorbed or emitted.
C) sets an upper limit to the amount of energy that can be absorbed or emitted.
D) relates mass to energy.
1) The ultraviolet catastrophe is a catastrophe because
A) Wien's law predicts an infinite intensity of radiation at large wavelengths.
B) Wien's law predicts an infinite intensity of radiation at small wavelengths.
C) ultraviolet light will not produce electrons by the photoelectric effect.
D) human vision cannot detect ultraviolet light directly.
Explanation / Answer
44) (A)uncertainty principle
35)Falso
max number of electrons = 2n^2
15)(D)Lower
16)(C)Balmer
9)D) An ultraviolet photon has more energy than does an infrared photon.
6)B) sets a lower limit to the amount of energy that can be absorbed or emitted.
1)B) Wien's law predicts an infinite intensity of radiation at small wavelengths.
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