Subject :NSO Class : Class 8
Which of the following optical device(s) uses a lens to form a real image of an object?
(1) Magnifying glass
(2) Pinhole camera
(3) Slide projector
A(3) only
B(1) and (2) only
C(1) and (3) only
D(2) and (3) only.
Ans 1:
Class : Class 8
It should option C