List of top Questions asked in AFMC

A good lubricant should have

A $60 \,kg$ man stands on a spring scale in the lift. At some instant he finds, scale reading has changed from $60 \,kg$ to $50 \,kg$ for a while and then comes back to the original mark. What should we conclude?

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:

The magnetic moment has dimensions of:

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?

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 :

When alcohol reacts with concentrated $H_{2}SO_{4},$ intermediate compound formed is :

$9th$ pair of cranial nerve in frog is :

Which of the following is an inert gas ?

Core of a transformer is made up of:

$HCl$ is secreted by :

How will you separate a solution (miscible) of benzene $ +CHCl_{3}$ ?

$50 \,mL$ of $10 \,N H_2SO_4, 25 \,mL$ of $12 \,N \,HCI$ and $40\, mL$ of $5N \,HNO_3$ are mixed and the volume of the mixture is made $1000\, mL$ by adding water. The normality of resulting solution will be

The length of second's pendulum is $1\, m$ on earth. If mass and diameter of a planet is doubled than that of earth, then its length becomes:

According to law of mass action rate of a chemical reaction is proportional to :

Which of the following is not the property of equipotential surfaces?

In electrolysis of dilute $ H_2SO_4$, what is liberated at anode?

The horizontal range of a projectile is $400\, m$. The maximum height attained by it will be:

Sense of smell is perceived by :

Phenomenon which converts light energy into chemical energy is :