F4 Chapter 6.2 Total Internal Reflection

Which of the following optical instruments use the principle of total internal reflection?

• Prism binocular

• Simple Microscope

• Astronomical telescope

• Car rear view mirror

Total internal reflection happen with the condition below

• I and II

• II and III

• III and IV

• I and V

Which diagram below shows the correct critical angle?

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• 
• 

If the refractive index of the glass is given as 1.5. Which of the diagram below shows the correct path way of light?

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• 
• 

What is the critical angle of the glass in the diagram below?

• 43°

• 47°

• 68°

• 69°

Calculate the refractive index of a liquid with a critical angle of 48°.

• 0.74

• 1.11

• 1.35

• 1.49

Example of the natural phenomena that involves total internal reflection is

• A straight object looks bent in water.

• A boy is able to see his own image in a mirror.

• the formation of mirage.

• the depth of a swimming pool look shallower than it really is.

Which pair of characteristics can reduce information lost during transmission?

• A

• B

• C

• D

Which diagram below is correct? If the critical angle of the glass prism is given as 40°.

• A

• B

• C

• D

A medium X has a refractive index of 1.4. Which of the following incident angle will lead to the occurrence of total internal reflection.

• 42°

• 45°

• 40°

• 48°