List of top Questions asked in AFMC- 2008

A motor is used to deliver water at a certain rate through a given horizontal pipe. To deliver $n$-times the water through the same pipe in the same time the power of the motor must be increased as follows

A machine is delivering constant power to drive a body along a straight line. What is the relation between the distance travelled by the body against time

The physical quantity having the dimensions $\left[ M ^{-1} L ^{-3} T ^{3} A ^{2}\right]$ is

A battery of emf $10\, V$ and internal resistance $3\, \Omega$ is connected to a resistor. The current in the circuit is $0.5\, A$. The terminal voltage of the battery when the circuit is closed is

When a low flying aircraft passes over head, we sometimes notice a slight shaking of the picture on our $TV$ screen. This is due to

A straight wire of mass $200\, g$ and length $1.5\, m$ carries a current of $2\, A$. It is suspended in mid-air by a uniform horizontal magnetic field $B$. The magnitude of $B$ (in tesla) is (assume $g=9.8\, ms ^{-2}$ )

According to classical theory of Rutherford's model, the path of electron will be

An unpolarised beam of intensity $I_{0}$ is incident on a pair of nicols making an angle of $60^{\circ}$ with each other. The intensity of light emerging from the pair is