Refraction of Light

Physics ⇒ Light and Optics

Refraction of Light starts at 8 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Refraction of Light. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 8

A ray of light passes from water (n=1.33) to glass (n=1.5). Will the ray bend towards or away from the normal?

Describe what happens to a ray of light as it passes from air into glass at an angle.

Explain why a coin placed at the bottom of a glass of water appears to be raised.

Explain why a swimming pool looks shallower than it actually is.

If a ray of light passes from a denser medium to a rarer medium, what happens to its speed?

If the angle of incidence is 0°, what will be the angle of refraction?

If the angle of incidence is 30° and the angle of refraction is 20°, in which medium is the light traveling faster?

If the refractive index of a medium is 2, what is the speed of light in that medium? (Speed of light in vacuum = 3 × 10⁸ m/s)

If the refractive index of glass is 1.5 and that of water is 1.33, which medium is optically denser?

If the refractive index of water is 1.33, what does this mean?

If the speed of light in a medium is 2 × 10⁸ m/s, what is the refractive index of the medium? (Speed of light in vacuum = 3 × 10⁸ m/s)

Light enters from air (n=1.0) into a liquid and bends towards the normal. Is the refractive index of the liquid greater than or less than 1.0?

Light travels from glass (n=1.5) into air (n=1.0). Will the light bend towards or away from the normal?

What happens to the wavelength of light as it enters a denser medium?

What is refraction of light?

What is the main reason for the formation of a rainbow?

What is the name of the law that relates the angle of incidence and the angle of refraction?

What is the unit of refractive index?

When light passes from air into water, does it bend towards or away from the normal?

A ray of light passes from medium A into medium B. The angle of incidence is 40°, and the angle of refraction is 25°. Calculate the refractive index of medium B with respect to medium A. (Use sin 40° = 0.643, sin 25° = 0.423)