Thermodynamics: JEE Main 2016 Physics question

JEE Main 2016 · Session, Shift 1 · Q7509

JEE Main 2016Session, Shift 1PhysicsMediumThermodynamics163× since 2002

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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JEE Main 2016 Thermodynamics Question with Solution (Session Shift 1, Q7509) | JEE Arc

JEE Main 2016 · Session, Shift 1 · Q7509

JEE Main 2016Session, Shift 1PhysicsMediumThermodynamics163× since 2002

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 :