Q1 of 47 Page 267

Mention the type of reflection of light takes place from

(a) a rough surface


(b) a smooth surface

(a) For rough surface irregular reflection or diffused reflection takes place.

(b) For smooth surface regular reflection takes place.


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2

Determine the angle of incidence of a ray of light, if the reflected ray is at an angle of 90° to the incident ray?

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Mention how many reflected rays can be obtained for a given single incident ray falling on a plane mirror?

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Is the image of an object in plane mirror virtual or real?

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Explain, why the virtual image cannot be taken on screen.