Q78 of 112 Page 312

State the laws of reflection of light.

The laws of reflection of light are-


● The incident ray, the normal ray and the reflected ray all lie in the same plane, and


● The angle of incidence is always equal to angle of reflection.


More from this chapter

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77

Which of the following will cause regular reflection of light and which diffuse reflection of light?

(a) Polished wooden table


(b) Chalk powder


(c) Cardboard


(d) Mirror


(e) Paper


(f) Marble floor with water spread over it.

 78

Draw a diagram to show the reflection of light from a plane mirror. Label the following on the diagram:

(a) Plane mirror


(b) Incident ray


(c) Reflected ray


(d) Point of incidence


(g) Angle of reflection


(e) Normal


(f) Angle of incidence

 79

Draw a labelled diagram showing how a plane mirror forms an image of a point object placed in front of it.

 79

State the characteristics of the image formed in a plane mirror.