The density of a gas filled in electric lamp is `0.75kg//m^(3)` . After the lamp has been switched on, the pressure in it increases from `4xx10^(4)` Pa to `9xx10^(4)` Pa. What is increases in `u_("rms")` ?
The density of a given mass of a gas when 10 Pa pressure acts on it is 2 kg m^(-3) . Calculate the density of the gas if the pressure is increased by 5 Pa at constant temperature.
The density of the material of a wire used in sonometer is 75xx10^(-2) kg //m^(3) . If the stress on the wire is 3.0xx10^(4) N//m^(2) , the speed of transverse wave in the wire will be
By how many folds the temperature of a gas would increase when the r.m.s. velocity of gas molecules in a closed container of fixed volume is increased from 5 xx 10^(4) cm s^(-1) " to " 10 xx 10^(4) cm s^(-1) ?
In a semiconductor, the number density of intrinsic charge carriers at 27^@C is 1.5 xx 10^(16) // m^3 . If the semiconductor is doped with impurity atom, the hole density increase to 4.5 xx 10^(22)//m^3 . The electron density in the doped semiconductor is "_______" xx 10^(9)//m^3 .
The ratio of final to initial pressures of a gas when u_(rms) of a gas in a container is increased from 5 xx 10^(4) cm sec^(-1)" to " 10 xx 10^(4) cm sec^(-1)
If pressure of a fixed quantity of a gas is increased 4 times keeping the temperature constant, the r.m.s velocity will be
