Wave Optics And Interference of light
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Wave Optics And Interference of light

This course will talk about some amazing properties of light when thought of as a wave, and why soap bubbles are colored
4.0 (39 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
2,812 students enrolled
Created by Mahesh Shenoy
Last updated 10/2016
English
Price: Free
Includes:
  • 2.5 hours on-demand video
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Understand how light behaves as a wave
  • Understand how the concept of interference and diffraction is all around us and where we apply them
  • Do quantitative analysis on Interference and diffraction patterns
View Curriculum
Requirements
  • Basic high school algebra. (Should be able to solve for x and y given x+y = 4 and 2x - 3y = 15)
  • And little bit.. TInnie winnie about refraction and snells law ( I will include notes covering that part don't worry)
Description

This course will cover the basics of Wave optics. It will be revolving majorly around the concept of
Interference and Diffraction

You ll see what they are, and how amazing they are, and how they play a role in our everyday lives (yes literally LITERALLY EVERYDAY). You ll understand (and not just FYI, but full quantitative analysis) why
Soap bubbles are colored, why some insects give out very bright colors (also feathers of peacock), why when you look at far away things, they blur (or pixelation if you prefer digitial :P) and a lot more other stuff.

If you are a high school student taking up a physics course or going to take up, anything at AP level or below, this is recommended for you

The structure of the course is pretty standard, Everything is in videos. There are two modes.

The float head -> where you will see my head talking about concepts with animations

The hands --> where you will see.. well my beautiful hands with which I write stuff like equations

I look forward to seeing you. Cheers!

Who is the target audience?
  • This course is not for anyone who is not at all interested in physics
  • This Course is for anyone (above 15 years probably) and is going to take up or taking any physics course at AP level or below
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Curriculum For This Course
31 Lectures
02:42:53
+
Going Back to 17th Century
1 Lecture 04:23

In this introductory video I ll talk about two amazing theories by two well known (at least 1 well known, and the other will be well known to you after you finish this course :D) scientists to explain what light is.

Let the theories begin!

Going Back to 17th Century
04:23
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Newton Vs Huygen
6 Lectures 30:58

Reflection is easy peezy for Sir Issac Newton. The man who unified gravity can surely explain reflection of light!

Newton explains reflection
04:52

Refraction must also be easy for this guy right? I mean how hard is to explain why light bends. Check out Newton's simple idea that even derives Snell's law of refraction. What a victory for particle model! (Spoilers: Or is it?)

Newton tells why light bends
04:28

Ok now I know this guy isn't all that famous, but you have to hear him out. You have to understand his wave theory. Its a great idea. And he believed in it so much, he went against the Mastero of his time, Newton. So what is light according to Huygen?. Find out in this section!

Huygen's Wave principle
06:44

If Newton can do it, So can Huygen. Watch as he explains how wave theory can prove the laws of reflections!

Huygen's turn - Reflection
06:20

This is a true test of the wave theory. Refraction, bending, how does his theory tackle refraction? Newton derived Snell's law. Can Huygen do it too? Or will his theory perish? (Spoilers : This is Wave optics for crying it out loud )

Huygen - light why you bend?
06:21

If you have been following, then by the end of the previous video you must have had your jaw dropped. So pick it up. Yes they both derive Snell's law, and both come to quite dramatic and contrasting conclusions

They both agree, refraction is due to change of speed of light. But what do they disagree on? Lets compare the results shall we?

Contrasting results HOLY MOLY!?
02:13
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Light is a Wave Or Particles? :O
2 Lectures 04:52

So the moment of truth? Who is right? who is wrong?? particle or wave?
(Spoilers : really?! I don't think you need any more spoilers)

Who is Right?
01:42

Waves are awesome
03:10
+
Waves can Interfere
7 Lectures 29:48
Finding Maximas
07:08

Finding Minimas
05:32

Lets repeat using Math! - Amplitude of resulting wave
08:12

Lets repeat using Math! - Maxima and Minima
04:23

Intensities or Brightness
02:24

Something doesn't "Add up"
00:39

It does "Add up" - The solution
01:30
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Bending of waves, and the Double slit
4 Lectures 27:43
Huygen can tell you why waves bend
07:19

Young Scientist
01:20

The Double Slit
10:52

Fringe Width And Wavelength of light (super ingenious)
08:12
+
Let us Recap
2 Lectures 09:30
Lets take a moment ok?
05:08

Waves Can Bend
04:22
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Interference - Numerical
3 Lectures 16:09
Interference Problem part1
09:13

Interference Problem Part 2
04:33

Interference Problem Part 3
02:23
+
The single slit
4 Lectures 30:15
SingleSlit Diffraction2
09:42

Singleslit Diffraction3
05:53

SingleSlit Diffraction1
02:23

SingleSlit Numerical
12:17
+
More Slits? Seriously? :O
2 Lectures 09:15
Broadening horizons, The multislit
01:52

Multislit is actually very Easy
07:23
About the Instructor
Mahesh Shenoy
4.0 Average rating
50 Reviews
3,496 Students
3 Courses
Physics teacher

Hello there, I am Mahesh Shenoy, but you can call me Mashy

I am basically an electronics engineer, but I shifted branches from applied electronics to pure science - namely physics about 4 years ago. My passion for physics grew watching the famous Walter Lewin lectures on youtube, and I always had a thing for teaching. As a student I know exactly what makes lectures boring, and uninteresting. I have dedicated past few years to master physics and teaching. I would say I am quite pleased with where I stand

Whether you will be able to master concepts of physics, is something that only you can decide. I can promise you, if you hear me out, I ll make you love physics. I ll make you see physics in your everyday world, and your life will never remain the same!