NAT I Computer Science Physics MCQs With Answers

A force of 10N is acting along y-axis its component along x-axis is

In a voltmeter the conduction takes place due to

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart. with force of repulsion between the spheres to be 10^-19 N is

The twinkling of stars is due to

A photoelectric cell converts

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

Light appears to travel in straight lines since

An ideal choke (used along with fluorescent tube) would be

Which of the following is equal to:

The motion without consideration of its cause is studied in:

The essential distinction between X-rays and y-rays is that