Reflection and Refraction of Light

Name: Reflection and Refraction of Light
Author: StemPy Lab

Where does the image in a mirror sit, and why does a pool look shallower than it is? Spherical mirrors and the mirror formula, Snell's law, total internal reflection in diamonds and optical fibres, and refraction at a curved surface. It covers the unit of the Indian syllabus (NCERT, NEET, JEE Main) and the matching topic of A-Level, IB and AP.

3 lessons, about 2 h 35 min3 simulations10 problems10 practice questionsPython in every lesson

Created by StemPy Lab

Course outline (3 lessons)

Lesson 1about 60 min
Reflection and spherical mirrors
A ray reflects with the angle of incidence equal to the angle of reflection. A spherical mirror has a focal length $f = \dfrac{R}{2}$ and obeys $\dfrac{1}{v} + \dfrac{1}{u} = \dfrac{1}{f}$ . The magnification is $m = -\dfrac{v}{u}$ .
1 simulation4 practice questions1 Python program3 problems1 Python lab
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Lesson 2about 55 min
Refraction and total internal reflection
Light bends when it passes from one material to another, and Snell's law $n_1\sin\theta_1 = n_2\sin\theta_2$ tells us by how much. Going from a denser to a rarer material at an angle larger than the critical angle $C$ , where $\sin C = \dfrac{n_2}{n_1}$ , light is totally reflected.
1 simulation4 practice questions1 Python program4 problems1 Python lab
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Lesson 3about 40 min
Refraction at a spherical surface
At a curved boundary between two materials, a point object and its image are linked by $\dfrac{n_2}{v} - \dfrac{n_1}{u} = \dfrac{n_2 - n_1}{R}$ . A flat boundary is the case $R \to \infty$ , and a glass ball is two such surfaces one after the other.
1 simulation2 practice questions1 Python program3 problems1 question set1 note
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Reflection and Refraction of Light: Practice Paper

15 questions · 20 min

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Reflection and Refraction of Light

Course outline (3 lessons)

Reflection and spherical mirrors

Refraction and total internal reflection

Refraction at a spherical surface

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