Subject :NSO Class : Class 8
We need a diminished image of an object on a screen 1 m away from it. This can be achieved by approximately placing a
A Convex mirror of suitable focal length
B Concave mirror of suitable focal length
C Concave lens of focal length less than 0.25 m
D Concave lens of suitable focal length.
Why not D?
Ans 1:
Class : Class 9
Tricky
Ans 2:
Class : Class 8