List of top Physics Questions

Ferromagnetic materials have their properties due to

Fermi energy is the maximum energy of an electron in the band at :

Fathom is the unit to measure the

Famous scientist, Maxwell unified

$F=\frac{Gm_1m_2}{r^2}$ is valid

Expansion during heating

Excess pressure of one soap bubble is four times that of other. Then the ratio of volume of first bubble to second one is

Estimate the change in the density of water in ocean at depth of 500m below the surface. The density of water at the surface is $10301\, kg\,m^{-3}$ & the bulk modulus of water is $2.2 \times 10^9Nm^{-2}$

Equation of a progressive wave is given by $y = 0.2 cos \, \pi \big(0.04 t + 0.02 x - \frac{\pi}{6}\big).$ The distance is expressed in cm and time in second. What will be the minimum distance between two particles having the phase difference of $\frac{\pi}{2}$ ?

Energy required to move a body of mass $m$ from an orbital radius $2R$ to $3R$ is

Energy is absorbed in the hydrogen atom giving absorption spectra when transition takes place from

Electronic configuration of Germanium is $2, 8, 18$ and $4$ . To make it extrinsic semi-conductor small quantity of antimony is added

Eddy currents do not cause :

Dyne - Second is the unit of

Dynamic lift due to spinning is

During projectile motion, the horizontal velocity

During interference of light, energy is:

During an artificial transmutation the nucleus emits

Droplets of a liquid are generally more spherical in shape than large drops of the same liquid because

Doppler shift in frequency does not depend upon

Double convex lenses are to be manufactured from a glass of refractive index $1.55$, with both faces of same radius of curvature. What is the radius of curvature required if the focal length is to be $20\, cm$?

Distance between the center of two stars is 10a. the masses of these stars are m and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the smller star towards the surface of the smaller star. What should be its minimum initial speed to reach the surface of the smaller star ?

Distance of distinct vision is 25 cm. The focal length of the convex lens is 5 cm. It can act as a magnifier of magnifying power:

Dispersive power of the material of a prism is 0.0221. If the deviation produced by it for yellow colour is 38, then the angular dispersion between red and violet colours is

Displacement time graph cannot be