Which of the following is true in the case of an adiabatic process,where $\gamma = C_p / C_V$?

The area (in square units) of the region bounded by the curves $x=y^2$ and $x=3-2y^2$ is

What is obtained when sodium metal is heated in a stream of dry ammonia?

The work functions of metals $A$ and $B$ are in the ratio $1 : 2$. If light of frequencies $f$ and $2f$ are incident on the surfaces of $A$ and $B$ respectively,the ratio of the maximum kinetic energies of photoelectrons emitted is (given that $f > f_{0A}$ and $2f > f_{0B}$).

$\int_0^3 \frac{3x+1}{x^2+9} dx$ is equal to :

Match the following columns:

Column-$I$	Column-$II$
$a$. Superior Vena Cava	$p$. Carries deoxygenated blood to the lungs
$b$. Inferior Vena Cava	$q$. Carries oxygenated blood to the heart
$c$. Pulmonary Artery	$r$. Brings deoxygenated blood from lower body parts to the right atrium
$d$. Pulmonary Vein	$s$. Brings deoxygenated blood from upper body parts to the right atrium