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Black Body Radiation in Quantum Mechanics. We covered all the Black Body Radiation in Quantum Mechanics in this post for free so that you can practice well for the exam.
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mcq on Black Body Radiation in Quantum Mechanics for Students
The speed of thermal radiation (V) compared to the speed of Light (C) is
a) V = C/2
b) V is greater than C
c) V is less than C
d) V is equal to C
Option d – V is equal to C
According to Einstein, the number of degrees of freedom for each Atom in a Solid is similar to that of a monoatomic gas Molecule. This number is
a) 3 degrees of freedom
b) 2 degrees of freedom
c) Only one degree of freedom
d) None of the above
Option a – 3 degrees of freedom
At elevated temperatures, Debye’s model predicts the molar Heat capacity of a Solid to be
a) 5R
b) 3R
c) R
d) None of the above
Option b – 3R
A black body at a temperature T₁ emits a certain amount of radiation. To emit 16 times more radiation, its temperature T₂ must be
a) T₁ = 8T₂
b) T₂ = 16T₁
c) T₂ = 4T₁
d) T₂ = T₁
Option b – T₂ = 16T₁
A black body emits radiation most strongly at a wavelength of 1.2 microns. If Wien’s constant is 0.3 cm·K, what is the approximate temperature of the black body?
a) 2000 K
b) 4000 K
c) 2500 K
d) 6000 K
Option c – 2500 K
We covered all the black body radiation in quantum mechanics above in this post for free so that you can practice well for the exam.
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