AIPMT 2011 Preliminary Mock Test

The potential energy of a system increases if work is done:

A body is moving with velocity $30\text{m/s}$ towards east. After $10\text{seconds}$ its velocity becomes $40\text{m/s}$ towards north. The average acceleration of the body is:

A missile is fired for maximum range with an initial velocity of $20\text{m/s}$. If $g=10{\text{m/s}}^2$, the range of the missile is:

Force $F$ on a particle moving in a straight line varies with distance $d$ as shown in the figure. The work done on the particle during its displacement of $12\text{m}$ is:

A charge $Q$ is enclosed by a Gaussian spherical surface of radius $R$. If the radius is doubled, then the outward electric flux will: