Refraction of Light

1. Define the refractive index in terms of velocity

Question 1 of 36

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

Question 2 of 36

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

Question 3 of 36

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

Question 4 of 36

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

Question 5 of 36

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

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

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

Question 8 of 36

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

Question 9 of 36

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

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

Question 11 of 36

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

Question 12 of 36

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

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

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15. Define the principle of reversibility of light

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

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

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

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

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

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

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22. State the Law of refraction

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

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24. 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 24 of 36

25. Define critical angle

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

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

Question 27 of 36

28. Define Lateral displacement

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

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

Question 30 of 36

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

Question 31 of 36

32. Define absolute refractive index?

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

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

Question 34 of 36

35. Define Snell's Law

Question 35 of 36

36. Vacuum has a refractive index of 1?

Question 36 of 36