Physics
GATE PH format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 331–340 of 380. Imported answers require independent review unless marked reviewed.
Question 27
Open questionPHMCQ2 marksNeeds review
An interstellar object has speed
at the point of its shortest distance
from star of much larger mass
. Given
, the trajectory of the object isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
A particle moves in one dimension under a potential
with some non-zero total energy. Which one of the following best describes the particle trajectory in the phase space?Your answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
Consider an infinitely long solenoid with
turns per unit length, radius
and carrying a current
, where
is a constant and
is the angular frequency. The magnitude of electric field at the surface of the solenoid isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
A constant and uniform magnetic field
pervades all space. Which one of the following is the correct choice for the vector potential in Coulomb gauge?Your answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
If
is the Hamiltonian for a free particle with mass
, the commutator
isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
A long straight wire, having radius
and resistance per unit length
, carries a current
. The magnitude and direction of the Poynting vector on the surface of the wire isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
Three particles are to be distributed in four non-degenerate energy levels. The possible number of ways of distribution: (i) for distinguishable particles, and (ii) for identical Bosons, respectively, is
Your answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
The term symbol for the electronic ground state of oxygen atom is
Your answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
The energy dispersion for electrons in one dimensional lattice with lattice parameter
is given by
, where
and
are constants. The effective mass of the electron near the bottom of the band isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
Amongst electrical resistivity (
), thermal conductivity (
), specific heat (
), Young’s modulus (Y), and magnetic susceptibility (
), which quantities show a sharp change at the superconducting transition temperature?Your answerChoose one option.
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