Question

.Which of the following relation is correct? 1) f =R /3 2) f= R/ 7 3) f= R /8 4) f= R/ 2

Answer 1

Answer:

4)f=R/2

Explanation:

here is your answer

hope it helps

Answer 2

Answer:

Option 4) is correct

Explanation:

Radius of curvature- It is defined as the twice of the focal length of the mirror/lens is know as radius of curvature.

It is written as;

R=2f

therefore, f= R/2

Hence option 4) is correct answer.