Refraction of Light

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

Question 1 of 36

2. Define critical angle

Question 2 of 36

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

Question 3 of 36

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

Question 4 of 36

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

Question 5 of 36

6. Define Lateral displacement

Question 6 of 36

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

Question 7 of 36

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

Question 8 of 36

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

Question 9 of 36

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

Question 10 of 36

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

Question 11 of 36

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

Question 12 of 36

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

Question 13 of 36

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

Question 14 of 36

15. Define the principle of reversibility of light

Question 15 of 36

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

Question 16 of 36

17. Define the refractive index in terms of velocity

Question 17 of 36

18. 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 18 of 36

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

Question 19 of 36

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

Question 20 of 36

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

Question 21 of 36

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

Question 22 of 36

23. Define absolute refractive index?

Question 23 of 36

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

Question 24 of 36

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

Question 25 of 36

26. State the Law of refraction

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27. Vacuum has a refractive index of 1?

Question 27 of 36

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

Question 28 of 36

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

Question 29 of 36

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

Question 30 of 36

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

Question 31 of 36

32. Define Snell's Law

Question 32 of 36

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

Question 33 of 36

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

Question 34 of 36

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

Question 35 of 36

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

Question 36 of 36