Question

Give one-word answers.
1. A mirror used by dentists
2. An object that diffuses light irregularly
3. An image that cannot be obtained on a screen
4.
The point at which all the rays converge after passing through a convex lens
5.
A point located at a distance which is twice of that between F and O of a lens​

Answer 1

Answer:

1) concave mirror is used by dentist's.

3) virtual image cannot be obtained on a screen.

Answer 2

Answer:

1.concave mirror

2.opaque object

3.Real image

4.Focal point

5.Centre of curvature