Question
Physics Question on Refraction of Light
A person is advised to use 5D lens. What is its focal length?
A
50 cm
B
5 cm
C
2 cm
D
20 cm
Answer
20 cm
Explanation
Solution
The correct option is (D): 20 cm.
A person is advised to use 5D lens. What is its focal length?
50 cm
5 cm
2 cm
20 cm
20 cm
The correct option is (D): 20 cm.