Edzy
AI TutorResourcesToolsCompareBuy
SearchDownload AppLogin
Edzy

Edzy for Classes 6-12

Edzy is a personal AI tutor for CBSE and State Board students, with curriculum-aligned guidance, practice, revision, and study plans that adapt to each learner.

  • Email: always@edzy.ai
  • Phone: +91 96256 68472
  • WhatsApp: +91 96256 68472
  • Address: Sector 63, Gurgaon, Haryana

Follow Edzy

Browse by Class

  • CBSE Class 6
  • CBSE Class 7
  • CBSE Class 8
  • CBSE Class 9
  • CBSE Class 10
  • CBSE Class 11
  • CBSE Class 12
Explore the CBSE resource hub

Explore Edzy

  • Study Resources
  • Free Study Tools
  • Best Apps for Board Exams
  • Edzy vs ChatGPT
  • About Us
  • Why We Built Edzy
  • Blog
  • CBSE AI Tutor

Support & Legal

  • Help & FAQs
  • Accessibility
  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Cookie Policy
  • Site Directory

© 2026 Edzy. All rights reserved.

Curriculum-aligned learning paths for students in Classes 6-12.

RO
Question Practice

What is the primary condition for total internal reflection to occur at a boundary?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Physics
Physics Part - II
RAY OPTICS AND OPTICAL INSTRUMENTS
Question Bank

What is the primary condition ...

Single Answer MCQ
Q-00085859

What is the primary condition for total internal reflection to occur at a boundary?

1

The angle of incidence must be less than the critical angle

2

Light must be traveling from a less dense to a more dense medium

3

The angle of incidence must exceed the critical angle

4

Light must be monochromatic

Previous QuestionNext Question

Video Explanation

Answer

Solution:

Watch Video Solution

Login to get access

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What is the range of wavelengths for visible light?

Single Answer MCQ
View explanation
Q2.

What is the angle of reflection when a light ray strikes a concave mirror at a specific angle?

Single Answer MCQ
View explanation
Q3.

What is the approximate speed of light in vacuum?

Single Answer MCQ
View explanation
Q4.

What is the principal focus of a concave mirror?

Single Answer MCQ
View explanation