Refraction of Light

1. What happens when light travels from a less dense medium (air) to a dense medium (glass)?

Question 1 of 36

2. Define the principle of reversibility of light

Question 2 of 36

3. Vertical displacement is the difference between real depth and apparent depth?

Question 3 of 36

4. Define the refractive index in terms of velocity for a light ray travelling from vacuum to medium?

Question 4 of 36

5. Which of the following statement is CORRECT about refraction?

Question 5 of 36

6. Is it possible for a ray of light to have an angle of refraction less than 90 degrees?

Question 6 of 36

7. Give the refractive index for a ray of light travelling from medium 1 to 2?

Question 7 of 36

8. Mention the 2 key main factors for total internal reflection to occur?

Question 8 of 36

9. Give the refractive index (according to the principle of reversibility of light) for a light ray reversed from medium 2 to 1?

Question 9 of 36

10. Which of the following medium can total internal reflection occur as light is travelling?

Question 10 of 36

11. Define critical angle

Question 11 of 36

12. What is the relationship between Critical angle and refractive index?

Question 12 of 36

13. What is the name given for an angle of incidence in the dense medium for which the angle of refraction in the less dense medium is 90 degrees?

Question 13 of 36

14. Define absolute refractive index?

Question 14 of 36

15. Which of the following is NOT an application of total internal reflection?

Question 15 of 36

16. Will refraction occur when the angle of incidence of the light is zero and there is no change in direction?

Question 16 of 36

17. Which of the following medium do you expect a weak refraction?

Question 17 of 36

18. Light is bent as it travels from one medium to another and this bending occurs only at the interface?

Question 18 of 36

19. State the Law of refraction

Question 19 of 36

20. Define Lateral displacement

Question 20 of 36

21. Define Snell's Law

Question 21 of 36

22. Briefly describe what happens when a light ray travelling from air to a glass block that is parallel-sided (displaced laterally)?

Question 22 of 36

23. Is it possible for a ray of light to have an angle of refraction greater than 90 degrees?

Question 23 of 36

24. Define the refractive index in terms of velocity

Question 24 of 36

25. Mention the disadvantage to which a plane mirror has that make it not preferable for used in a periscope and other optical instrument?

Question 25 of 36

26. Refraction is the bending of light at the interface when it travels from one medium to another?

Question 26 of 36

27. Refractive index of a material (in terms of real and apparent depth) is?

Question 27 of 36

28. Briefly explain what shall happen when the angle of incidence exceeds the critical angle C?

Question 28 of 36

29. What happens when light travels from a less dense medium (air) to a denser medium (glass)?

Question 29 of 36

30. What happens when light travels from a dense medium (glass) to a less dense medium (air)?

Question 30 of 36

31. Vacuum has a refractive index of 1?

Question 31 of 36

32. Is the following formula correct when comparing velocity of light rays between 2 media: n1V1 = n2V2 ?

Question 32 of 36

33. Will refraction occur when a ray of light travels perpendicular to the interface from one medium to another?

Question 33 of 36

34. Which of the following medium do you expect a greater refraction?

Question 34 of 36

35. What happens when light travels from a dense medium (glass) to a less dense medium (air)?

Question 35 of 36

36. Can total internal reflection occur when light travels from a less dense medium to a denser medium like air to water?

Question 36 of 36