Optics Question 938
Question: What will be the height of image when an object of 2 mm is placed on the axis of a convex mirror at a distance 20 cm of radius of curvature 40 cm
[Orissa PMT 2004]
Options:
A) 20 mm
B) 10 mm
C) 6 mm
D) 1 mm
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{I}{O}=\frac{f}{f-u}\Rightarrow \frac{I}{2}=\frac{20}{20+20}=\frac{1}{2} $
Therefore $ I=1mm $
