List of top Physics Questions asked in AIIMS

X-ray beams are affected by

For an enclosure maintained at $1000\, K$, the maximum radiation occurs at wavelength $\lambda_{m}$. If the temperature is raised to $2000\, K$, the peak will shift to

Escape velocity of a rocket is $11.2\, km/sec$. It is released at an angle of $45^{\circ}$. Its escape velocity is

Work done in uniform circular motion is zero. Force is always directed along displacement.

Centripetal force does no work. Force and displacement are perpendicular to each other.

At pole value of acceleration due to gravity (g) is greater than that of equator. Earth rotates on its axis in addition to revolving round the sun.

A wire of length $l$ carries a steady current. It is bent first to form a circular plane loop of one turn. The magnetic field at the centre of the loop is $B$. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same is

A body of mass $M$ moving with velocity $V$ explodes into two equal parts. If one comes to rest and the other body moves with velocity $v$, what would be the value of $v$ ?

At a place earth's magnetic field $5 \times 10^{5} Wb / m ^{2}$ is acting perpendicular to a coil of radius $R=5 \,cm$. If $\mu_{0} / 4 \pi=10^{-7}$, then how much current is induced in circular loop?

Colour of a star depends upon

For liquid to rise in a capillary tube, the angle of contact should be

A particle is revolving in a circle of radius $R$. If the force acting on it is inversely proportional to $R$, then the time period is proportional to

The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is $v$. The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

$1 \,Kcal$ of heat flowing through a rod of iron. When the rod is cut down to $4$ pieces then what will be the heat flowing through each piece having same differential temperature?

Speed in kilometer per hour in S.I. unit is represented as

S.I. unit of velocity is

A satellite is in an orbit around the earth. If its kinetic energy is doubled, then

A $60\, W$ incandescent lamp operates at $120\, V$. The number of electrons passing through the filament per second will be

A simple pendulum has a bob suspended by an inextensible thread of length $1$ metre from a point $A$ of suspension. At the extreme position of oscillation, the thread is suddenly caught by a peg at a point $B$ distant (1/4) m from $A$ and the bob begins to oscillate in the new condition. The change in frequency of oscillation of the pendulum is approximately given by $\left(g=10 m / s ^{2}\right)$.

An insulated charged sphere of radius $5 \,cm$ has a potential of $10\, V$ at the surface. What is the potential at centre?

Force between two identical bar magnets whose centres are $r$ metre apart is $4.8\, N$ when their axes are in the same line. If separation is increased to $2\, r$, the force between them is reduced to

Ratio of intensities of two waves is $9 : 1$. If these two are superimposed, what is the ratio of maximum and minimum intensities?

Half life of a substance is $20$ minutes. What is the time between $33\%$ decay and $67\%$ decay?

Eddy currents are produced when

If a convex lens is kept in water its convergent power decreases. Focal length of convex lens in water increases.