List of top Questions asked in AFMC- 2006

The time of reverberation of a room $A$ is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double of those of room $A$ ?

The de-Broglie wavelength of an electron, $\alpha$-patiicle and a proton all having the same kinetic energy is respectively given as $ \lambda_e, \, \lambda_\alpha $ and $ \lambda_p $. Then which of the following is not true?

Light enters at an angle of incidence in a transparent rod of refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidence?

$300\, J$ of work is done in sliding a $2 kg$ block up an inclined plane of height $10 \,m$. Taking $g=10\, m / s ^{2}$, work done against friction is :

Interference was observed in an interference chamber when air was present. Now, the chamber is evacuated and if the same light is used, a careful observation will show:

Aerofils are so designed that the speed of air:

$27$ small drops each having charge $q$ and radius $r$ coalesce to from big drop. How many times charge and capacitance will become?

The magnetic moment has dimensions of:

According to Bernoulli's equation $\frac{P}{\rho g}+h+\frac{1}{2} \frac{v^{2}}{g}=$ constant The terms $A, B$ and $C$ are generally called respectively :