image and ocr are different

Assertion:- When we see the image in water, blurred image is seen. Reason:- Refractive index of air and water are different.

Observe. Study the given figure. Determine the position, size and nature of images formed for different posidons of an object with the help of ray diagrams.

List out the images that are formed when a convex lens is made up of three different materials.

"In between a fixed object and a fixed screen, a convex lens can cast two images at two different positions of the lens". Taking this to be a true statement show that product of the image sizes is equal to the square of the object size.

Give the position and nature of image of an extended object for different distances from a concave mmirror.