What happens to a ray that travels along the principal axis, strikes a convex surface and passes from rarer to denser medium ?

What happens to a ray that travels along the principal axis, strikes a concave surface and passes from rarer to denser medium?

What happens to a ray that travels through the centre of curvature of a single curved surface ?

The refracted ray ……….. when a ray travelling parallel to the principal axis, strikes a convex surface and passes from rarer to denser medium

The refracted ray ………… when a ray travelling parallel to the principal axis, strikes a convex surface and passes from denser medium to rarer medium

The refracted ray ……… when a ray travelling parallel to the principal axis, strikes a concave surface and passes from rarer medium to denser medium

The refracted ray ……… when a ray travelling parallel to the principal axis, strikes a concave surface and passes from denser medium to rarer medium

A person is standing on the bank of a river. A fish inside water will see the person to be

A lemon kept in a glass of water appears to be bigger than its actual size. This is due to ……….

A transparent material is bounded by two surfaces of which one (or) both – surfaces are spherical is called …………

A lens has ……… curved surfaces.

A lens which has thick at the middle and thinner at the edges is called …………

A lens is bounded by two spherical surfaces, thin at the middle and thicker at the edges is called ……………

The midpoint of a thin lens is called …………

The line joining the centre of curvatures of a lens to optic centre is called …………