Class 12 Physics (India): Total internal reflection

Critical incident angle and total internal reflection

Class 12 Physics (India)

It is now time to dive deeper into the world of physics with topics from class 12 (NCERT) such as electrostatics, electricity, magnetism, electromagnetic induction, and electromagnetic waves. Let's also learn more about light with ray optics and wave optics. Finally, let's look at what happened in the last hundred years of physics by getting introduced to quantum mechanics with dual nature of radiation and matter, atoms, nuclei, and semiconductors.

Refraction at plane surfaces

You may have seen a straw dipped in a glass of water appears bent. It's not the straw that's bending, it's the light. In this lesson we will explore this bending or 'refraction' of light. We will see when it happens, why it happens and the rule called 'Snell's law' that governs it.

Topic: Science

Learn about all the sciences, from physics, chemistry and biology, to cosmology and astronomy, across hundreds of videos, articles and practice questions.