Quiz on Refraction of Light at Curved Surfaces

What is the phenomenon that occurs when light passes from one medium to another?

• Reflection

• Refraction

• Diffraction

• Scattering

When light passes from a rarer medium to a denser medium, it bends:

• Towards the normal

• Away from the normal

• Does not bend

• None of the above

What happens to light when it travels along the principal axis through a curved surface?

• It bends

• It diverges

• It converges

• It does not deviate

What is the term for the center of the sphere that a curved surface is part of?

• Pole

• Focus

• Radius

• Centre of curvature

What is the focal point?

• The point where refracted rays converge

• The point where rays diverge

• The center of the lens

• A random point on the principal axis

The refractive index of a material affects:

• The speed of light in the material

• The angle of refraction

• Both a and b

• None of the above

What type of image is formed by a convex lens when the object is beyond the centre of curvature?

• Virtual and magnified

• Real, inverted, and diminished

• Virtual and diminished

• Real, inverted, and magnified

What is the principal axis in a curved surface?

• A line perpendicular to the surface

• A line joining the centre of curvature to the pole

• A random line passing through the surface

• None of the above

When light travels from a denser medium to a rarer medium, it:

• Speeds up and bends towards the normal

• Slows down and bends away from the normal

• Speeds up and bends away from the normal

• Slows down and bends towards the normal

Which lens is thick in the middle and thinner at the edges?

• Concave lens

• Convex lens

• Plano-concave lens

• None of the above