Question
Question: An object 2 cm high is placed at a distance of16 cm from a concave mirror, which produces a real ima...
An object 2 cm high is placed at a distance of16 cm from a concave mirror, which produces a real image 3 cm high. What is the focal length of the mirror?
A
-9.6 cm
B
-3.6 cm
C
-6.3 cm
D
-8.3 cm
Answer
-9.6 cm
Explanation
Solution
: Here, 
(Since image is real and inverted
Now, 
