Lakhmir Singh and Manjit Kaur Solutions for Chapter: Refraction of Light, Exercise 25: Questions Based on High Order Thinking Skills (HOTS)

When an object is placed $10 \mathrm{cm}$ in front of lens $A$, the image is real, inverted, magnified and formed at a great distance. When the same object is placed $10 \mathrm{cm}$ in front of lens $B$, the image formed is real, inverted and same size as the object.

What is the focal length of lens $B$?

When an object is placed $10 \mathrm{cm}$ in front of lens $A$, the image is real, inverted, magnified and formed at a great distance. When the same object is placed $10 \mathrm{cm}$ in front of lens $B$, the image formed is real, inverted and same size as the object.

What is the nature of lens $A$?

When an object is placed $10 \mathrm{cm}$ in front of lens $A$, the image is real, inverted, magnified and formed at a great distance. When the same object is placed $10 \mathrm{cm}$ in front of lens $B$, the image formed is real, inverted and same size as the object.

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:

An inverted magnified image?

What kind of lens can form:

An erect magnified image?

What kind of lens can form:

An inverted diminished image?

What kind of lens can form:

An erect diminished image?