Optics Question 611
Question: A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by appropriately placing
[IIT JEE 1995]
Options:
A) A convex mirror of suitable focal length
B) A concave mirror of suitable focal length
C) A concave lens of suitable focal length
D) A convex lens of suitable focal length less than 0.25 m
Show Answer
Answer:
Correct Answer: D
Solution:
Convex mirror and concave lens do not form real image. For concave mirror $ v>u $ , so image will be enlarged, hence only convex lens can be used for the purpose.
