A Concave Mirror And Convex Lens Are Kept In Water. What Changes, If

1.	A Concave Mirror And Convex Lens Are Kept In Water. What Changes, If Any, Do You Except In The Focal Length Of Either ?
Answer» No change in the focal LENGTH of the CONCAVE MIRROR. It is half of its radius of curvature, no effect of external medium. No change in the focal length of the concave mirror. It is half of its radius of curvature, no effect of external medium.

A Concave Mirror And Convex Lens Are Kept In Water. What Changes, If Any, Do You Except In The Focal Length Of Either ?

Answer»

No change in the focal LENGTH of the CONCAVE MIRROR. It is half of its radius of curvature, no effect of external medium.

No change in the focal length of the concave mirror. It is half of its radius of curvature, no effect of external medium.