JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Application +4 | -1

A pendulum clock having copper rod keeps correct time at

20^{\circ} \mathrm{C}

. It gains 15 seconds per day if cooled to

0^{\circ} \mathrm{C}

. The coefficient of linear expansion of copper is

View answer and explanation

Correct option: B

1.7 \times 10^{-5}{}^{\circ} \mathrm{C}^{-1}

Option B (

1.7 \times 10^{-5}{}^{\circ} \mathrm{C}^{-1}

) is correct because the coefficient of linear expansion is calculated based on the time gained by the pendulum clock.

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