Question
Question: The distance of distinct vision of a person is 50 cm. He wants to read a book placed at 25 cm. What ...
The distance of distinct vision of a person is 50 cm. He wants to read a book placed at 25 cm. What should be the focal length of the spectacles?
A
25 cm
B
50 cm
C
75 cm
D
100 cm
Answer
50 cm
Explanation
Solution
: Here, 
