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A luminous point object is placed at O, ...

A luminous point object is placed at O, whose image is formed at I as shown in Figure. Line AB is optical axis. Which of the following statement is`//`are correct?

A

if a lens is used to obtain image,the lens must be converging

B

If a mirror is used to obtain image,the mirror must be a concave mirror having pole at the point of intersection of lines`Ol`and`AB`.

C

Position of principal focus of mirror cannot be found

D

`I` is real image

Text Solution

Verified by Experts

The correct Answer is:
A,D
since the image Is inverted so it must be real which can be obtained either by convex,lens or concave mirror.
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