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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define Huygens' principle in your own words.
💡 Hint: Think about how waves spread from a point.
Question 2
Easy
What happens to the speed of light when it enters a denser medium?
💡 Hint: Consider how light behaves in water vs. air.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is Huygens' principle?
💡 Hint: Think about how waves come from the source.
Question 2
Snell's Law relates which two angles?
- Angle of reflection and refraction
- Angle of incidence and refraction
- Angle of incidence and wavelength
💡 Hint: Consider what angles are affected when light crosses a boundary.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A light beam enters a glass block (n = 1.5) from air (n = 1) at an angle of 45 degrees. Calculate the angle of refraction.
💡 Hint: Use inverse sine to find the angle.
Question 2
If an incident beam creates a 30-degree angle with the normal in air and results in a reflected angle of 30 degrees but refracts at 20 degrees, calculate the refractive index of the second medium.
💡 Hint: Remember to manipulate the sine function properly.
Challenge and get performance evaluation