What do you understand by the following statements.Co.efficient of area expansion of a material is `30 xx 10^(-6) per^@C` .

What do you understand by the following statements. Latent heat of vaporization of water is 450 cal//gm

What do you understand by the following statements. Specific heat of mercury is 0.033 cal//gm^@C .

What do you understand by the following statements. The value of J = 4.2 "Joules"//cal .

What should be the length of steel abd copper rods at 0^@C so that the difference in their lengths is 5.0 cm at all temperatures. Coefficient of linear expansion of copper is 1.7 xx 10^(-5) //^@ C and that of steel is 1.1 xx 10^(-5) //^@ C .

A steel rod is 3.000 cm in diameter at 25^@C . A brass ring has an interior diameter of 2.992 cm at 25^@C . At what common temperature will the ring just slide onto the rod ? (Coefficient of linear expansion of steel= 12 xx 10^(-6) per k and coefficient of linear expansion of brass= 18 xx 10^(-6) per k) .

If a cylinder of diameter of 1 cm at 30^@C is fitted into a hole of diameter 0.9997 cm in a steel plate, find the temperature the fitting has to be done ? Co.eff.of linear expansion of steal is 12 xx 10^(-6)//^@ C

A clock with an iron pendulum keeps correct time at 20^@C . How much will it lose are gain if temperature changes to 40^@C ? (Coefficient of cubical exexpansion of iron = 36 xx 10^(-6) per^@C .)

A clock with a copper pendulum beats seconds at 25^@C . Find the loss or gain perday when the temperature falls to 10^@C . Take co-efficient of linear expansion of copper = 18 xx 10^(-6)//^@ C

A rod A and a rod B of different materials differ in length by 5 cm at all temperatures . What are their lengths at 0^@C if the coefficients of linear expansion of A and B are 12 xx 10^(-6)//^@C and 18 xx 10^(-6)//^@C respectively ?

State whether the following statements are True (T) or False (F): The charge of a body may be 2 xx 10^19C .