(A) A concave mirror and convex lens both have the same focal length in air. When they are submerged in water. They will still have the same focal length. ( R) The refractive index of air is greater than the refractive index of water.

(A) A concave mirror and convex lens both have the same focal length i

1.	(A) A concave mirror and convex lens both have the same focal length in air. When they are submerged in water. They will still have the same focal length. ( R) The refractive index of air is greater than the refractive index of water.
Answer» Both A and R are TRUE and R is the CORRECT explanation of A Both A and R are true and R is not the correct explanation of A A is true and R is false Both A and R is false Answer :D