General instruction same as in chapter 1.
Assertion:If we look through a muslin cloth, a coloured spectrum is seen.
It is due to diffraction of white light on passing through fine slits.

In these question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion:Coloured specrum is seen,when we look through a muslin cloth. Reason:It is due to the diffraction of white light on pasing through fine slits.

Coloured specrtrum is seen,when we look through a muslin cloth.Why?

General instruction same as in chapter 1. Assertion:In two half life of a radioactive sample, all nuclei will decay. Reason:Half life T=(dN)/(dt) .

General instructions same as in chapter 1. Assertion:An electron jumps from lower to higher orbit in an atom. Reason:The electron absorbs energy to jump from lower to higher orbit.

General instruction same as in chapter 1. Assertion: Electrons move away from a low potential to high potential region. Reason:Because electrons has negative charge.

General instruction same as in chapter 1. Assertion: No interference pattern is detected when two coherent sources are infinitely close to each other. Reason:The Fringe width is inversly proportional to the distance between the two slits and a singel fringe may occupy the whole screen.

General instruction same as in chapter 1. Assertion: The electrostatic force between the plates of a charged isolated capacitro increases, when a dielectric fills whole space between the plates. Reason:The electric field between the plates of a charged isolated capacitor increases, when a dielectric fills the whole space between the plates.

General instructions same as iin chapter 1. Assertion:A bar magnet exerts a torque on itself due to its own field. Reaons: Magnetic field due to a magnet is uniform.