light

Total internal reflection occurs when light

• Moves from air to glass

• Moves from a rarer to a denser medium

• Moves from a denser to a rarer medium at an angle greater than the critical angle

• Moves from vacuum to air

The part of the human eye that controls the amount of light entering is

• Lens

• Retina

• Pupil

• Cornea

The angle of incidence is equal to the angle of reflection. This is known as

• Snell’s law

• Law of reflection

• Law of dispersion

• Law of refraction

A concave mirror forms a real and inverted image when the object is placed

• Between the pole and the focus

• Between the focus and the center of curvature

• At infinity

• Beyond the center of curvature

The speed of light is maximum in

• Water

• Glass

• Vacuum

• Diamond

The phenomenon of splitting of white light into its component colors is called___________.

The power of a lens is measured in ________________

The ability of a mirror to form images is due to the property of __________ of light.

The part of the human eye that acts as a natural convex lens is the __________.

A convex lens is also known as a __________ lens.