List of top Physics Questions

What determines the nature of the path followed by the particle?

Which of the following is not an example of perfectly inelastic collision?

Transformer is based upon the principle of:

In the circuit, the galvanometer $G$ shows zero deflection. If the batteries $A$ and $B$ have negligible internal resistance, the value of the resistor $R$ will be :

In a reflecting astronomical telescope, if the objective (a spherical mirror) is replaced by a parabolic mirror of the same focal length and aperture, then

If radius of the $^{27}_{13} Al$ nucleus is estimated to be $3.6$ fermi, then the radius of $^{125}_{52} Te$ nucleus be nearly:

If $I_0$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled ?

If a freely falling body travels in the last second a distance equal to the distance travelled by it in the first three second, the time of the travel is

For sky wave propagation of $10\, MHz$ signal, what should be the minimum electron density in ionosphere?

A body is moved from rest along a straight line by a machine delivering constant power. The distance moved by the body in time $t$ is proportional to

In which case does the potential energy decrease?

If the momentum of a body increases by $50\%$, its kinetic energy will increase by

A particle moving with a uniform acceleration travels $24\, m$ and $64 \,m$ in the first two consecutive intervals of $4\,s$ each. Its initial velocity is

A bicycle is in motion. The frictional force exerted by the ground on the two wheels acts

A particle moves in the $xy$ - plane under the action of a force $\vec{ F }$ such that the components of its linear momentum $\vec{ P }$ at any time $t$ are $P_{x}=2 \cos t, P_{y}=2 \sin t$. The angle between $F$ and $p$ at time $t$ is

$L, C $ and $R$ represent physical quantities inductance, capacitance and resistance respectively. The combination representing dimension of frequency is

Dimension of electrical resistance is

Cyclotron is a device which is used to

Consider a car moving on a straight road with a speed of $100\, m/s$. The distance at which car can be stopped, is : $[\mu_k = 0.5]$

Assuming earth to be sphere of uniform density what is the value of acceleration due to gravity at a point $100\, km$ below the earth surface (Given $R=6380\,\times 10^{3}\,m$)

The clouds in sky generally appear to be whitish. Diffraction due to clouds is efficient in equal measure at all wavelengths.

Specific gravity of a fluid is a dimensionless quantity. It is the ratio of density of fluid to the density of water.

An astronomical telescope has two lenses of focal powers $0.5\, D$ and $20\, D$. Then its magnifying power will be :

An annular ring with inner and outer radii $R_1$ and $R_2$ is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, $\frac{F_{1}}{F_{2}}$ is :

A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity, then :