NAT I Computer Science Physics MCQs With Answers

The dimensional formula of toque is:

When a Na ion and a CI ion are placed in air a force F acts between them when they are separated by a distance of 1 cm from each other the permittivity of air and the dielectric constant of water are ε₀ and K respectively When a piece of salt is placed in water then the force between Na⁺ and CI^- ions separated by a distance of 1 cm will be

If a diamagnetic substance is brought near north or south pole of a bar magnet it is

A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be

The de broglie wave corresponding to a particle of mass m and velocity v has a wavelength associated with it

The average power dissipation in a pure capacitor in AC circuit is

A particle moves along a circular path under the action of a force. The work done by the force is

When boron is added as an impurity to silicon the resulting material is

Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is

Which of the following is not thermo dynamical function?

In an AC circuit a resistance of R ohm i connected in series with an inductance L if phase angle between voltage and current be 45^o the value of inductive reactance will be