Question

Please help....!


x : The focal value of any lens is twice the diameter of its curvature.

y : The radius of curvature of any lens is twice the value of the focal length.

A] Both x , y are correct
B] Both x , y are incorrect
C] x is correct , y is incorrect
D] x is incorrect , y is correct.


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Answer 1

Explanation:

option number D is correct since ,

f = R/2

where f-> focal length and

R-> radius of curvature

Answer 2

$\sf \huge \underline \blue {ANsWeR :- }$

option D is the correct answer

X is incorrect , Y is correct

The radius of curvature of any lens is twice the value of the focal length is true ✓

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