AIPMT 2009 Preliminary Mock Test

Sodium has body centred packing. Distance between two nearest atoms is $3.7\text{A˚}$. The lattice parameter is:

The internal energy change in a system that has absorbed $2\text{Kcals}$ of heat and done $500\text{J}$ of work is:

Three capacitors each of capacitance $C$ and of breakdown voltage $V$ are joined in series. The capacitance and breakdown voltage of the combination will be:

An explosion blows a rock into three parts. Two parts go off at right angles to each other: a $1\text{kg}$ part moving at $12{\text{ms}}^{-1}$ and a $2\text{kg}$ part moving at $8{\text{ms}}^{-1}$. If the third part flies off with a velocity of $4{\text{ms}}^{-1}$, its mass would be:

A particle starts its motion from rest under the action of a constant force. If the distance covered in the first $10$ seconds is $S_1$ and that covered in the first $20$ seconds is $S_2$, then: