CUET (UG) entrance exam Question Bank Solutions for Physics

Most of the substance show which of the magnetic property:-

If a charged particle at rest experience no electromagnetic force

The relation b/w magnetic susceptibility xm and relativ~ permeability µr is

A wire of length 2 m carrier of lamp is bend to form a circle. The magnetic moment of a coil is :-

A steel wire of length 1 has a magnetic moment m it is then bent into a semicircular arc. The new magnetic moment is

The inverse square law of intensity is valid for a

At point A on the earth's surface the angle of dip, d = +25°. At a point Bon the earth's surface the angle of dip, d = −25°. We can interpret that

Three capacitors each of 4 µF are to be connected in such a way that the effective capacitance is 6µF. This can be done by connecting them:

A wavefront AB passing through a system C emerges as DE. The system C could be:

Three different capacitors are·connected in series. Then:-

Which of the following is conserved when light wave interfere?

Light travel faster in air than in glass according to

A Prism has reflecting angle of 60° when a ray is incident at 50° it suffer minimum deviation (Sm). The value of Sm is

If the critical angle for total internal reflecting from medium to vacuum is 30, the velocity of light n the medium is

A piano convex lens is made of refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is

A parallel plate capacitor with air between the plates has a capacitance of 8 pF. Calculate the capacitance if the distance between the plates is reduced by half and the space between them is filled with a substance of dielectric constant. (ε_r = 6)

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect?

The energy required to charge a parallel plate condenser of plate separation d and plate area of cross-section A such that the uniform electric field between the plates is E is:

When air replace by dielectric medium of constant K, the maximum force of attraction between two charges separate by a distance.

A parallel plate capacitor is made by stocking n equally spaced plates connected alternately. If the capacitance b/w any two plate is x, then the total capacitance is