NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Hard

1 of 1

Application +4 | -1

A clock with a metal pendulum beating seconds keeps correct time at

0^\circ C

. If it losses 12.5s a day at

25^\circ C

the coefficient of linear expansion of metal pendulum is

View answer and explanation

Correct option: A

\frac{1}{{86400}}/^\circ C

Option A (

\frac{{1}}{{{{86400}}}}/^\circ C

) is correct because it represents the coefficient of linear expansion calculated from the time lost by the pendulum clock.

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\left. {0.05{\text{W}}{{\text{m}}^{ - 1}}^\circ {{\text{C}}^{ - 1}}} \right)

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\sigma

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