Question

6. What is a virtual image? Give one situation where a virtual image is
formed.
7. State two differences between a convex and a concave lens.
8. Give one use each of a concave and a convex mirror.
9. Which type of mirror can form a real image?
10. Which type of lens forms always a virtual image?​

Answer 1

.hii user

Ans 6 image that cannot be obtained on a screen is called virtual image. In a case of plane mirror virtual images formed.

Ans 9 concave mirror can form a real image on an object.

Ans10 A concave Lens always form a virtual image..

Ans 7 convex lens

It form real and virtual image both..

It can form inverted image of an object..

Concave lens

It always form virtual image

Image formed by concave lens is always diminished...

Ans 8 uses of convex mirror

It is used inside mirrors of vehicles

Uses of concave mirror

It is used by Doctors to examine eyes ,ears etc...

I hope it will help you....