Question

Which type of mirror is used in torch?
Write Two characteristics of Plane Mirror.
We can not see the objects in the dark.Why?

Answer 1

Answer:

1. Concave mirror is used in torch reflector

2. Two characteristics of plane mirror are ,

⇒Images formed by the plane mirrors are virtual , upright and laterally                          

   inverted.

⇒The distance of the object from the plane mirror is same as the distance of the image from the plane mirror    

 

3.We see an object when light falls on it and gets reflected from its surface and enters into our eyes.In a dark room, there is no source of light.Thus, no light falls on the surface of the object and thus we do not see them.That is why we can't see objects in the dark.

HOPE THIS HELPS....

Answer 2

Answer:

1) Concave mirror is used in torch

2) a) Plane mirror forms an erect image

b) It forms a virtual image

3) We see an object when light falls on its surface and enters our eyes . In a dark room, thete is no source of light. Thus, no light falls on the surface of object and hence we do not see them. this is why we cannot see the object in a dark room

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