Practice Critical Angle (6.1) - Light and Optics - IB 10 Sciences (Group 4)- Physics

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define the critical angle in your own words.
Show hintHide hint
Think about where light cannot escape.
Question 2.
What happens when light hits the critical angle?
Show hintHide hint
Consider the behavior of light at boundaries.
3Question 3.
What is the critical angle?
- a) The angle of incidence where light is refracted
- b) The angle of incidence where total internal reflection occurs
- c) The angle of incidence where light is absorbed
Show hintHide hint
Consider the reflection behavior of light.
4Question 4.
True or False: Total internal reflection occurs when light travels from a more dense to a less dense medium.
- True
- False
Show hintHide hint
Remember the definitions of terms.
Question 5.
If the index of refraction for diamond is 2.42 and for air is 1.00, what is the critical angle when light travels from diamond to air?
Show hintHide hint
Use the refractive indices in the sin-1 function.
Question 6.
Discuss how the principle of critical angle can impact the design of optical fibers in telecommunications.
Show hintHide hint
Think about how light behaves inside different materials.

4 more questions in this section. Enroll free to practise them all.