Chapter 23, Problem 89GP

To determine

The type of lens from the picture.

Answer to Problem 89GP

Solution:

The left one is converging lens and right one is diverging lens

Explanation of Solution

The image with bigger eyes is the convex lens which makes the eye look bigger. And the image with smaller and farther eye is the concave lens which makes the eye looks smaller.We can understand the formation of image by convex and concave lens by ray diagram.

if we look at any object such as candle through a convex lens, the object will be magnified and appear bigger than it really is. That is why the eye through convex lens is looking bigger in picture 23-66 given in question.

if we look any object like candle through concave lens, it would appear smaller than it really is, that is why the eye is looking smaller through the concave lens in picture 23-66 given in question.