Where should an object be placed in front of a convex lens to get a real image of the size of the object? [NCERT]
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:B
Where should an object be placed in front of a convex lens to get a real image of the size of the object? [NCERT]
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