Question

What is the ratio between focal length and radius of Curvature
A)4:1
B) 1:4
C)1:2
D)2:1​

Answer 1

Answer:C is the right answer

Explanation:

Answer 2

Answer:

$\large{ \underline{ \underline{ \sf{ \color{yellow}{REQUIRED- ANSWER:-}{} }{} }{} }{} }{}$

Firstly,

Here We Need to Find the Ratio of Focal length and Radius of Curvature.

We Already knew that R = 2f

This Means that the Focal Lengths Double measurement is the Value of Radius Of Curvature. Hence f = ½R

$\large{ \underline{ \underline{ \sf{ \color{cyan}{Ratio \: = 1:2}{} }{} }{} }{} }{}$