GATE (Graduate Aptitude Test in Engineering) Physics: Questions 14 - 16 of 659
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Question number: 14
» Atomic and Molecular Physics » Rotational and Vibration Spectra of Diatomic Molecules
Appeared in Year: 2014
Question
The moment of inertia of a rigid diatomic molecule A is 6 times that of another rigid diatomic molecule B. If the rotational energies of the two molecules are equal, then the corresponding values of the rotational quantum numbers are –
Choices
| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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Question number: 15
» Thermodynamics and Statistical Physics » Free Energy
Appeared in Year: 2014
Question
For a free electron gas in two dimensions, the variation of the density of state, as a function of energy , is best represented by –
Choices
| Choice (4) | Response | |
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| a. |  The Density of State as a Function of E - Choice A In figure the variation of the density of state, N (E) as a function of energy E; is shown. |
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| b. |  The Density of State as a Function of E - Choice B In figure the variation of the density of state, N (E) as a function of energy E; is shown. |
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| c. |  The Density of State as a Function of E - Choice C In figure the variation of the density of state, N (E) as a function of energy E; is shown. |
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| d. |  The Density of State as a Function of E - Choice D In figure the variation of the density of state, N (E) as a function of energy E; is shown. |
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Question number: 16
» Electromagnetic Theory » Electromagnetic Waves and Their Reflection
Appeared in Year: 2015
Question
A plane wave after passing through an optical element emerges as , where and are the wavevector and the angular frequency, respectively. The optical element is a –
Choices
| Choice (4) | Response | |
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| a. | Faraday rotator |
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| b. | Polarizer |
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| c. | Quarter wave plate |
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| d. | Half wave plate |
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