AIPMT 2012 Preliminary Mock Test

The motion of a particle along a straight line is described by equation: $x=8+12t-t^3$ where $x$ is in metre and $t$ in second. The retardation of the particle when its velocity becomes zero, is:

A concave mirror of focal length $f_1$ is placed at a distance of $d$ from a convex lens of focal length $f_2$. A beam of light coming from infinity and falling on this combination returns to infinity. The distance ‘$d$ ’ must equal:

A milli voltmeter of $25\text{mV}$ range is to be converted into an ammeter of $25\text{A}$ range. The value (in ohm) of necessary shunt will be:

The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are:

A ray of light is incident at an angle $i$ on one face of a prism of angle $A$ (small) and emerges normally from the opposite face. If the refractive index is $\mu$, the angle $i$ is nearly equal to: