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WorksheetsQuantum Mechanics for Complementary Chemistry
Total questions: 15
Worksheet time: 8mins
A blackbody is a perfect absorber and a perfect emitter.
True
False
True only when heated
True only when cold
Value of Planck's constant, h =
6.626 x 10-34 Js
6.626 x 10-34 J
6.626 x 1034 Js
6.266 x 10-31 Js
In the low frequency limit, Planck's radiation law reduces to
Wien's Law
Planck's hypothesis
Rayleigh - Jeans Law
Stefan-Boltzmann law
Photoelectric Effect was first observed by Albert Einstein.
False, it was observed by Planck.
False, it was observed by Hertz in 1887.
True
None of these.
Select all that applies regarding Photoelectric current / effect.
Depends on frequency of incident radiation.
Independent on intensity of incident radiation.
Depends on nature of emitting surface.
The kinetic energy of electrons depends on intensity of radiation.
The slope of the kinetic energy versus frequency graph in the case of photoelectric effect, is
n h / e
h / n e
h / e
h e
The Compton Effect is a result of ______________
radiation-radiation interaction.
particle-radiation interaction.
particle-particle interaction.
quantization of momentum.
mch is knwon as ____________
de Broglie wavelength
Compton wavelength
Compton shift
matter wave
Davisson-Germer experiment verifies __________
quantization of energy.
quantization of momenta.
uncertainty principle.
de Broglie hypothesis of matter waves.
Uncertainty principle applies to ___________
position and momentum variables.
energy and time variables.
any pair of canonically conjugate variables.
any pair of quantum variables.
The three essential conditions for a wave function are
It should be normalizable
It must be finite and single valued.
It's derivatives, must be continuous and single valued.
It, along with it's derivatives, must be continuous and single valued.
In the case of time independent Schrodinger equation, the potential is ____
dependent on time.
may or may not be independent on time.
independent on time.
zero.
de Broglie wavelength of an electron accelerated through 100V is ______
1.22 A0
1.42 A0
1.02 A0
12.2 A0
The probability density of particles confined to a box potential is _____
time dependent.
space independent.
time independent.
unity.
Erwin Schrodinger shared the Nobel prize for quantum theory with _____
P. A. M. Dirac
Albert Einstein
Max Planck
J. J. Thompson.
