Question

Where should an object be placed in front of a convex lens to get a real image of the size ofthe object?

a. At the principal focus of the lens

b. At twice the focal length

c. At infinity

d. Between the optical centre of the lens and its principal focus​

Answer 1

• (b) is ur ans....................!

Answer 2

convex mirror real images cannot be obtained it can be only virtual and enlarged.

if we talk about concave mirror the object is placed at PRINCIPAL FOCUS OF THE LENS to get the real image of the same size as of the object.