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qUESTIONS

Absolute refractive indices of glass and water are 3/2 & 4/3. The ratio of velocity of light in glass and water will be

Which of the following is a correct relation

Two identical charges repel each other with a force equal to 10 mg wt when they are 0.6 m apart in air (g = 10 ms^-2). The value of each charge is

The charge on two identical metallic balls are +40 μC and -10μC respectively and they are separated at 2.0 m. How much and nature of force will act between them?

The force of interaction between two charges q1 = 6μC and q2 = 2μC is 12 N. If charge q = -2μC is added to each of the charges. then the new force of interaction is

Force between two identical charges placed at a of in vacuum is F. Now a dielectric slab of dielectric constant 4 is inserted between these two charges, then the force between the charges will become

Given that q1 + q2= q. For what ratio q1/q will the force between q1 and q2 be maximum?

If the electric flux entering and leaving an enclosed surface respectively are Φ1, and Φ2, the electric charge inside the surface will be

An electric dipole is placed at an angle of 30° to a non- uniform electric field. The dipole will experience

A hollow cylinder has a uniformly within it. If φ charge q coulomb distributed is the electric flux in unit of voltmeter associated with the curved surface B, the flux linked with the plane surface A in unit of voltmeter will be

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