Question

(To get image equal to the object in a convex lens, the object should at)
Mark only one oval.
0001
ಪ್ರಧಾನ ಸಂಗಮದಲ್ಲಿ (Principle Focal Point (Double the focal length)
(Infinity)
(Principle focal point and vertex of the mirror)​

Answer 1

Explanation:

your answer is

double the focal length