Question 11 MarkA $.........$ mirror always forms a virtual image.AnswerA convex mirror always forms a virtual image.View full question & answer→
Question 21 MarkA concave mirror forms a virtual image for an object placed $.........$AnswerA concave mirror forms a virtual image for an object placed between pole and focus.View full question & answer→
Question 31 MarkThe angle of incidence for a ray of light passing through the centre of curvature of a spherical mirror is $.........$AnswerThe angle of incidence for a ray of light passing through the centre of curvature of a spherical mirror is $0^\circ$View full question & answer→
Question 41 MarkRadius of curvature of a spherical mirror is $.........$ its focal length.AnswerRadius of curvature of a spherical mirror is two times its focal lengthView full question & answer→
Question 51 MarkA $.........$ mirror is obtained on silvering the outer surface of a part of a hollow glass sphere.AnswerA concave mirror is obtained on silvering the outer surface of a part of a hollow glass sphere.View full question & answer→
Question 61 MarkThe splitting of white light into its constituent colours is called $.........$AnswerThe splitting of white light into its constituent colours is called dispersion.View full question & answer→
Question 71 MarkWhen white light passes through a prism, it $.........$AnswerWhen white light passes through a prism, it disperseView full question & answer→
Question 81 MarkWhen a ray of light travels from air to glass, it bends $..........$ the normal.AnswerWhen a ray of light travels from air to glass, it bends towards the normal.View full question & answer→
Question 91 MarkWhen a ray of light travels from water to air, it bends $.........$ the normal.AnswerWhen a ray of light travels from water to air, it bends away from the normal.View full question & answer→
Question 101 MarkAir is optically $.........$ than glass.AnswerAir is optically rarer than glass.View full question & answer→
Question 111 MarkWater is optically $.........$ than air.AnswerWater is optically denser than air.View full question & answer→