Question

a clock with brass pendulum

Answer 1

Answer:

Thermal Properties of Matter

Thermal Expansion

A clock, with brass pendulum

A clock, with a brass pendulum, keeps correct time at 20

∘

C, but losses 8.212s per day, when the temperature rises to 30

∘

C. The coefficient of linear expansion of brass is:-

ANSWER

Loss of time in a day=

2

1

×α×(t

2

−t

1

)×86400

So, 8.212=1/2×α×10×86400

Answer is 19×10

−16

/

o

C

Explanation:

MARK AS BRAINLIEST ANSWER