Heat and Thermodynamics

JEE Main 2016 · Session, Shift 1 · Q7509

PhysicsMedium251×since 2002Q7509

A pendulum clock loses

12

s

a day if the temperature is

{40^ \circ }C

and gains

4

s

a day if the temperature is

{20^ \circ }C.

The temperature at which the clock will show correct time, and the co-efficient of linear expansion

\left( \alpha \right)

of the metal of the pendulum shaft are respectively :

JEE Main 2016 · Session, Shift 1 · Q7509

PhysicsMedium251×since 2002Q7509

A pendulum clock loses

12

s

a day if the temperature is

{40^ \circ }C

and gains

4

s

a day if the temperature is

{20^ \circ }C.

The temperature at which the clock will show correct time, and the co-efficient of linear expansion

\left( \alpha \right)

of the metal of the pendulum shaft are respectively :

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