A clock is calibrated at a temperature of `20^@C` Assume that the penduum is a thin brass rod of negligible mass with a heavy bob attached to the end `(alpha_("brass")=19xx10^(-6)//K)`

An iron ball of diameter 6cm and is 0.01 mm too large to pass through a hole in a brass plate when the ball and plate are at a temperature of 20^(0)C . The temperature at which (both for ball and plate) the ball just passes through the hole is (alpha_(iron) = 12 xx 10^(-6 //0)C, alpha_(brass) = 18 xx 10^(-6 //0)C)

A clock which keeps correct time at 20^@C has a pendulum rod made of brass . How many seconds will it gain or lose per day when temperature falls to 0^@C ? [alpha=18xx10^(-6)//^@C]

A clock which keeps correct time at 20^@C has a pendulum rod made of brass . How many seconds will it gain or lose per day when temperature falls to 0^@C ? [alpha=18xx10^(-6)//^@C]

A brass rod and a copper rod have same difference in length at all temperatures. If the difference in their length is 10 cm at 0^(@)C find the length of brass and copper roeds. (alpha_("brass")=19xx10^(-6)" "^(@)Candalpha_("copper")=17xx10^(-6)" "^(@)C)

A brass rod and a lead rod each 80 cm long at 0^@C are clamped together at one end with their free ends coinciding. The separatioin of free ends of the rods if the system is placed in a steam bath is ( alpha_("brass")=18xx10^(-6)//^(@)C and alpha_("lead")=28xx10^(-6)//^(@)C )

A brass rod and a lead rod each 80 cm long at 0^@C are clamped together at one end with their free ends coinciding. The separatioin of free ends of the rods if the system is placed in a steam bath is ( alpha_("brass")=18xx10^(-6)//^(@)C and alpha_("lead")=28xx10^(-6)//^(@)C )

A brass rod and a lead rod each 80 cm long at 0^@C are clamped together at one end with their free ends coinciding. The separatioin of free ends of the rods if the system is placed in a steam bath is ( alpha_("brass")=18xx10^(-6)//^(@)C and alpha_("lead")=28xx10^(-6)//^(@)C )

A brass scale correctly calibrated at 15°c is employed to measure a length at a temperature of 35°C. It the scale measures a reading of 75 cm ( alpha_("brass") = 2 xx 10^(-5) //^(@) C)