Question

The focal length of a convex lens is 15 cm. What should be the object distance to get a real image equal to the size of object?
(a) 30 cm
(b) 15 cm
(c) 60 cm
(d) None of these

Answer 1

Explanation:

The focal length of a convex lens is 15 cm. What should be the object distance to get a real image equal to the size of object?

(a) 30 cm

(b) 15 cm✓✓✓✓✓

(c) 60 cm

(d) None of these

Answer 2

Explanation:

The focal length of a convex lens is 15 cm. What should be the object distance to get a real image equal to the size of object?

(a) 30 cm

(b) 15 cm✔️✔️

(c) 60 cm

(d) None of these