Questions

If a magnetic substance is brought near the north or the south pole of a bar magnet

If a magnetic substance is brought near the north or the south pole of a bar magnet, it is: Options…

A susceptibility of a certain magnetic material is 400. What is the class

A susceptibility of a certain magnetic material is 400. What is the class of the magnetic material? Options (a) Diamagnetic…

A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge

A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge of the proton is 10¹¹…

A freely suspended bar magnet aligns itself in

A freely suspended bar magnet aligns itself in Options (a) A direction (b) A particular direction (c) Any direction (d)…

There is a ring of radius r having linear charge densityλ and rotating with a uniform

There is a ring of radius r having linear charge density λ and rotating with a uniform angular velocity ω.…

Magnetism of a magnet is due to

Magnetism of a magnet is due to Options (a) Cosmic rays (b) Large magnet at the centre of Earth (c)…

The lower most layer of atmosphere in which man and other living organisms exist

The lower most layer of atmosphere in which man and other living organisms exist is called Options (a) stratosphere (b)…

The part of earth and atomosphere supporting life is

The part of earth and atomosphere supporting life is Options (a) biota (b) ecotone (c) biome (d) biosphere Correct Answer:…

The percent law of energy transfer, in a food chain, was enunciated by

The percent law of energy transfer, in a food chain, was enunciated by Options (a) Lindeman (b) Haeckel (c) Elton…

The place was rocky and burried but now there is a green forest, the sequence

The place was rocky and burried but now there is a green forest, the sequence of origin is Options (a)…