An uncharged capacitor is connected to a battery. On charging the capacitor,

In biennial plants,the number of carpels is normally:

The angle between the lines whose direction cosines satisfy the equations $l+m+n=0$ and $l^2+m^2-n^2=0$ is

Identify the major product of the following reaction:

If $z = \sec(y - ax) + \tan(y + ax)$,then $\frac{\partial^2 z}{\partial x^2} - a^2 \frac{\partial^2 z}{\partial y^2}$ is equal to

The ratio of the specific heat capacities of a gas is $1.5$. When the gas undergoes an adiabatic process,its volume is doubled and pressure becomes $P_1$. When the gas undergoes an isothermal process,its volume is doubled and pressure becomes $P_2$. If $P_1 = P_2$,the ratio of the initial pressures of the gas when it undergoes adiabatic and isothermal processes is