To keep constant time, watches are fitted with balance wheel made of.....

Consider the melting of 1g of ice at to water at at atmospheric pressure Then the change in internal energy of the system(density of ice is 920kg/m³

The mean and variance of the random variable X which follows the following distribution are respectively 

If X is a random variable with the following distribution  where p+q=1 then the variance of X is

On applying a stress of  the length of a perfect elastic wire is doubled. What will be its Young's modulus?

A fixed volume of iron is drawn into a wire of length L. The extension X produced in this wire be a constant force F is proportional to…….

A wire of diameter 1 mm breaks under a tension of 100 N. Another wire of same material as that of the first one, but of diameter 2 mm breaks under a tension of……..

A steel ring of radius r and cross-section area ' A ' is fitted on to a wooden dise of radius   If young's modulus be E then what is force with which the steel nine is expanded ?

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 

One mole of an ideal gas is adiabatically compressed so that its temperature rises from The work done by the gas is (R=8.47J/mol/K)

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 

A copper wire and a steel wire of same diameter and length are connected end to end a force is applied, which stretches their combined length by 1 cm, the two wires will have.....

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means