The lens A produces a magnification of, - 0.6 whereas lens B produces a magnification of + 0.6.

(a) What is the nature of lens A?

(b) What is the nature of lens B?

When a fork is seen through lenses A and B one by one, it appears as shown in the diagrams. What is the nature of (i) lens A, and (ii) lens B? Give reason for your answer.

What kind of lens can form?

(a) An inverted magnified image?

(b) An erect magnified image?

(c) An inverted diminished image?

(d) An erect diminished image?

A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 30 cm in front of the lens. How much is the focal length of the lens?

An object is placed at a distance of 4 cm from a concave lens of focal length 8 cm. Find the position and nature of the image.