Home
Class 12
PHYSICS
A glass rod when measured with a zinc sc...

A glass rod when measured with a zinc scale, both being at `30^(@)C`, appears to be of length `100`cm . If the scale shows correct reading at `0^(@)C`, then the true length of glass rod at `30^(@)C` and `0^(@)C` are :-
(`alpha_("glass") = 8 xx 10^(-6)"^(@)C ^(-1), alpha_("zinc") = 26 xx 10^(-6) K^(-1)`)

Promotional Banner

Similar Questions

Explore conceptually related problems

A steel rod when measured with a zinc scale (alpha = 26 xx 10^(-6)//^@C) appears to be 1 m long when both rods are at 20^@C . If the zinc scale was graduated at 0^@C , what is the true length of the steel rod at 0^@C ? alpha for steel = 12 xx 10^(-6)//^@C .

What should be the length of steel and copper rods at 0^(@)C that the length of steel rod is 5 cm longer than copper at all termperature? Given alpha_(Cu) = 1.7 xx 10^(5) .^(@)C^(-1) and alpha_(steel) = 1.1 xx 10^(5) .^(@)C^(-1) .