Question

Plz answer these questions.....

Ques. What type of lens is an air bubble inside the water?

Ques. A convex lens is immersed in a liquid of refractive index greater than that of Glass how will the nature of lens change ?

Ques.If two lenses (convex )are in contact with each other what happens to the day after refraction ?

Answer 1

The lens has two refracting surfaces which do the job of refraction. This nature won’t be changed provided the immersed liquid is transparent enough to allow the light to pass through it. (This is second one ans)