Home
Class 11
PHYSICS
A clock , with a brass pendulum, keeps c...

A clock , with a brass pendulum, keeps correct time at `20^(@)C`, but loses `8.212` s per day , when the temperature rises to `30^(@)C`. Calculate the coefficient of linear expansion of brass.

Text Solution

Verified by Experts

Temperature of correct time , `t_(1) =20^(@)C` Loss or gain of time in seconds per day `=8.212 sec`.
Final temperature , `t_(2)=30^(@)C`
`therefore Delta t=30-20=10`
`alpha ` of pendulum material =?
In pendulum loss or gain of time in seconds per day `=43,200. alpha Delta l`
`therefore alpha = (8.212)/(43.200xx10)=19xx10^(-6)//^(@)C`.
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    VGS PUBLICATION-BRILLIANT|Exercise VERY SHORT ANSWER QUESTIONS|26 Videos

  • THERMAL PROPERTIES OF MATTER

    VGS PUBLICATION-BRILLIANT|Exercise SHORT ANSWER QUESTIONS|5 Videos

  • PHYSICAL WORLD

    VGS PUBLICATION-BRILLIANT|Exercise VERY SHORT ANSWER QUESTIONS|6 Videos

  • UNITS AND MEASUREMENTS

    VGS PUBLICATION-BRILLIANT|Exercise PROBLEMS|15 Videos

Similar Questions

Explore conceptually related problems

A clock with an iron pendulum keeps correct time at 15^(@)C . If th room temperature rises to 20^(@)C , the error in second per day will be (coefficient of linear expansion of iron is 0.000012^(@)C )

A barometer with brass scale, which is correct at 0^(@)C , reads 75.000 сm on a day when the air temperature is 20^(@)C . Calculate correct reading at 0^(@)C . (Coefficient of real expansion of mercury = 0.00018//^(@)C and coefficient of linear expansion of brass = 0.0000189//""^(@)C .)

A barometer with a brass scale correct at 0^(@)C reads 70 cm of mercury on a day when the air temperature is 40^(@)C . The correct reading at 0^(@)C is (Coefficient of real expansion of mercury is 0.00018//^(@)C and the coefficient of linear expansion of brass is 0.000018//^(@)C .

A clock with a metallic pendulum is 5 seconds fast each day at a temperature of 15^(@)C and 10 seconds slow each day at a temperature of 30^(@)C . Find coefficient of linear expansion for the metal.