Question 21 MarkA black paper absorbs light of all the colours and reflects none.AnswerTrue.View full question & answer→
Question 31 MarkA rose appears red in light of all the colours.AnswerFalse.A rose appears red in white light.View full question & answer→
Question 41 MarkThe speed of light in vacuum is $3 \times 10^8 ms^{-}$.AnswerTrue.View full question & answer→
Question 51 MarkThe objects are seen around us due to irregular reflection of light.AnswerTrue.View full question & answer→
Question 61 MarkThe image formed by a plane mirror can be obtained on a screen.AnswerFalse.The image formed by a plane mirror cannot be obtained on a screen.View full question & answer→
Question 71 MarkThe image formed by a plane mirror is upright.AnswerTrue.View full question & answer→
Question 81 MarkThe image of the right hand in a plane mirror looks like that of a left hand.AnswerTrue.View full question & answer→
Question 91 MarkWhen a light ray is reflected from a wall, the angle of incidence is not equal to the angle of reflection.AnswerFalse.When a light ray is reflected from a wall, the angle of incidence is equal to the angle of reflection.View full question & answer→
Question 101 MarkThe image formed by a plane mirror is realAnswerFalse.The image formed by a plane mirror is virtual.View full question & answer→