subject

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 9
A coin placed at the bottom of a glass of water appears to be at a shallower depth than it actually is. Explain why.
A ray of light passes from air into a transparent material and bends towards the normal. What can you say about the refractive index of the material compared to air?
A ray of light passes from glass (n = 1.5) into water (n = 1.33) at an angle of incidence of 45°. Will the ray bend towards or away from the normal?
Define the term 'refractive index'.
A coin placed at the bottom of a glass of water appears to be at a shallower depth than it actually is. Explain why.
A light ray enters from air (n = 1.0) into a medium with refractive index 1.6 at an angle of incidence of 30°. Calculate the angle of refraction (to the nearest degree).
A ray of light passes from air into a transparent material and bends towards the normal. What can you say about the refractive index of the material compared to air?
A ray of light passes from glass (n = 1.5) into water (n = 1.33) at an angle of incidence of 45°. Will the ray bend towards or away from the normal?
The phenomenon of refraction is used in which of the following devices? (1) Microscope (2) Periscope (3) Telescope (4) Both (1) and (3)
Which color of visible light bends the most when passing through a prism? (1) Red (2) Green (3) Blue (4) Violet
Which of the following has the highest refractive index? (1) Air (2) Water (3) Glass (4) Diamond
Which of the following is NOT a cause of refraction? (1) Change in speed of light (2) Change in direction of light (3) Change in medium (4) Change in color of light
Fill in the blank: The angle between the incident ray and the normal is called the _______.
Fill in the blank: The path of a light ray changes at the _______ between two media.
The change in direction of light when it passes from one medium to another is called _______.
The refractive index of a medium is defined as the ratio of the speed of light in _______ to the speed of light in the medium.
If the refractive index of a medium is less than 1, is this possible for any material?
True or False: Refraction can cause objects under water to appear closer to the surface than they actually are.
True or False: Refraction only occurs when light enters a transparent medium at an angle other than 0°.
True or False: The angle of incidence is always equal to the angle of refraction.