Question

Just answer 2 and 3 thanks.

Answer 1

Answer:

X is convex and y is concave lens

X is converging lens i.e.it converge light at one point.

y is deviriging lens i.e. it diverge the light in different directions.

X is used in microscope and in human eye.

y is used in spakcs.

Explanation:

..

hope you like it.