GATE PH · 2020 · PH
Question 15: Classical Mechanics
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Question 15
PHMCQ1 markNeeds review
A small disc is suspended by a fiber such that it is free to rotate about the fiber axis (see figure). For small angular deflections, the Hamiltonian for the disc is given by
where
is the moment of inertia and
is the restoring torque per unit deflection. The disc is subjected to angular deflections (
) due to thermal collisions from the surrounding gas at temperature
and
is the momentum conjugate to
. The average and the root-mean-square angular deflection,
and
, respectively are 
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2020PH
GATE PH 2020 · Paper 1
Physics · Original paper archive
- Section
- Physics
- Question type
- Multiple choice (MCQ)
- Marks
- 1 mark
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