Physics
GATE PH format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 351–360 of 380. Imported answers require independent review unless marked reviewed.
Question 18
Open questionPHMCQ1 markNeeds review
Electromagnetic interactions are:
Your answerChoose one option.
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Open questionPHMCQ1 markNeeds review
A one dimensional simple harmonic oscillator with Hamiltonian
is subjected to a small perturbation,
. The first order correction to the ground state energy is dependent onYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
For the Hamiltonian
where
,
is a real vector,
is the
identity matrix, and
are the Pauli matrices, the ground state energy isYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
The coefficient of
in the Fourier expansion of
for
isYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
The degeneracy of the third energy level of a 3-dimensional isotropic quantum harmonic oscillator is
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Open questionPHMCQ1 markNeeds review
The electronic ground state energy of the Hydrogen atom is
eV. The highest possible electronic energy eigenstate has an energy equal toYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
A reversible Carnot engine is operated between temperatures
and
(
) with a photon gas as the working substance. The efficiency of the engine isYour answerChoose one option.
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Open questionPHMCQ1 markNeeds review
In the nuclear reaction
, the particle
isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
An infinite solenoid carries a time varying current
, with
. The axis of the solenoid is along the
direction.
and
are the usual radial and polar directions in cylindrical polar coordinates.
is the magnetic field at a point outside the solenoid. Which one of the following statements is true?Your answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
The minimum number of NAND gates required to construct an OR gate is:
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