Practice Refractive Index - 3.1 | Light and Optics | IB MYP Class 10 Sciences (Group 4)- Physics
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3.1 - Refractive Index

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the refractive index of a medium if light travels at 2 × 10^8 m/s in it?

💡 Hint: Use the formula n = c/v.

Question 2

Easy

What happens to light when it travels from a less dense to a denser medium?

💡 Hint: Think about how the speed of light changes.

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 does a refractive index greater than 1 indicate?

  • Light slows down in the medium
  • Light speeds up in the medium
  • No change in light speed

💡 Hint: Think about how light behaves in different media.

Question 2

Snell's Law relates which variables?

  • Angles of incidence and refraction
  • Only angles of incidence
  • Only angles of refraction

💡 Hint: Recall the law that includes both angles.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A ray of light strikes the interface between air (n=1) and diamond (n=2.42) at an angle of incidence of 60°. Calculate the angle of refraction.

💡 Hint: Rearranging Snell's Law will help you find the needed angle.

Question 2

If a fiber optic has a core with n=1.5 and cladding with n=1.45, determine if total internal reflection will occur when light travels from the core to the cladding at the critical angle.

💡 Hint: Use the formula for critical angle based on refractive index.

Challenge and get performance evaluation