Select Board & Class

Login

Light Reflection And Refraction

Question 4:

A spherical mirror and a thin spherical lens have each a focal length of −15 cm. The mirror and the lens are likely to be

(a) both concave

(b) both convex

(c) the mirror is concave and the lens is convex

(d) the mirror is convex, but the lens is concave

Answer:

(a) By convention, the focal length of a concave mi...

To view the solution to this question please

What are you looking for?

Syllabus