What is $VAM$?

$A$ class has $15$ boys and $5$ girls. Suppose $3$ students are selected at random from the class. The probability that there are $2$ boys and $1$ girl is

The equation of the normal to the curve $y^4=ax^3$ at $(a, a)$ is

Which of the following salts increases the rate of the setting process of Plaster of Paris?

$A$ parallel plate capacitor of capacity $100 \mu F$ is charged by a battery of $50 \text{ V}$. The battery remains connected,and if the plates of the capacitor are separated so that the distance between them becomes double the original distance,the additional energy supplied by the battery to the capacitor in joules is:

Cyclic photophosphorylation results in the formation of: