A person who used a concave lens saw an image. without specs, he couldn't see an image clearly which was far away. If we place a mirror closer to him he could see a mirror (object) but he can not see an image(at a long distance) which was reflected by a mirror.Why he could not see an image clearly even though the mirror was closer to him. ?

Open in App

Solution

Since the image distance is same as object distance in a mirror, the person can see the mirror which is nearer to him but not the image of the object.

Suggest Corrections

Similar questions

Question 20 (a)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see.

How many mirrors should he use to see the objects?

Q. Assertion :A short-sighted person can not see objects clearly when placed beyond

50 c m

. He should use a concave lens of power

2 D

. Reason: The concave lens should form the image of the object at infinity at a distance of

50 c m

A person sees his virtual image by holding a mirror very close to the face.

When he moves the mirror away from his face, the image becomes inverted.

What type of mirror he is using

Question 20 (e)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees.

If any of the mirrors is removed, will he be able to see the objects?

Q. If a person can see an object clearly when it is placed at about

25 c m

away from him, he is suffering from:

Join BYJU'S Learning Program