Neet 2005 PYQ Free Mock Test

Assertion: Specific gravity of a fluid is a dimensionless quantity.Reason: It is the ratio of density of fluid to the density of water.

Assertion: Frictional forces are conservative forces.Reason: Potential energy can be associated with frictional forces.

Assertion: By roughening the surface of a glass sheet its transparency can be reduced.Reason: Glass sheet with rough surface absorbs more light.

Assertion: A diode lasers are used as optical sources in optical communication.Reason: Diode lasers consume less energy.

Assertion: Diamond glitters brilliantly.Reason: Diamond does not absorb sunlight.