List of top Physics Questions

For transmission of e.m.wave of audible frequency, these waves are superimposed with waves of

For observing diffraction it is essential to have

For any arbitrary motion in space, which of the following relations is true? (The average stands for average of the quantity over the time interval $t_1$ to $t_2$)

For a single side band transmission a balanced modulator is used to

For a transistor amplifier in common emitter configuration for load impedance of $1\,k\Omega$ ($h_{fe} = 50$ and $h_{oe} = 25\, mA\, V^{-1}$), the current gain is

For a particle performing uniform circular motion, choose the incorrect statement from the following.

Following law/laws is/are basic law/laws

Find the magnifying power of a compound microscope whose objective has a focal power of 100 D and eyepiece has a focal power of 16 D when the object is placed at a distance of 1.1 cm from the objective. Assume that the final image is formed at the least distance of distinct vision, 25 cm.

Find maximum height upto which v will move on inclined plane. All surfaces are smooth

Find corresponding velocity-time graph for given displacement time graph

Figure shows $(x, t), (y, t)$ diagram of a particle moving in 2-dimensions.

If the particle has a mass of 500 g, the force acting on the particle is

Figure shows a man of mass $55\, kg$ standing stationary with respect to a horizontal conveyor belt that is accelerating with $1\,m$ $s^{-2}$. The net force acting on the man is

Fig shows the time-displacement curve of the particles P and Which of the following statement is correct?

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