__ Engineering Physics notes Aktu __

Here in this post I will give you notes of all the units of the Engineering Physics which is teaching in AKTU and other universities also . There are many topics which we will cover . And I will give you name of some books which you can study .

**Unit-1: Quantum Mechanics **

Inadequacy of classical mechanics, Planck’s theory of black body radiation(qualitative), Compton effect, de-Broglie concept of matter waves, Davisson and Germer Experiment, Phase velocity and group velocity, Time-dependent and time-independent Schrodinger wave equations, Physical interpretation of wave function, Particle in a one-Dimensional box.

### Unit-2: Electromagnetic Field Theory

Basic concept of Stoke’s theorem and Divergence theorem, Basic laws of electricity and magnetism, Continuity equation for current density, Displacement current, Maxwell equations in integral and differential form, Maxwell equations in vacuum and in conducting medium, Poynting vector and Poynting theorem, Plane electromagnetic waves in vacuum and their transverse nature. Relation between electric and magnetic fields of an electromagnetic wave, Plane electromagnetic waves in conducting medium, Skin depth.

### Unit-3: Wave Optics

Coherent sources, Interference in uniform and wedge shaped thin films, Necessity of extended sources, Newton’s Rings and its applications, Introduction to diffraction, Fraunhoffer diffraction at single slit and double slit, Absent spectra, Diffraction grating, Spectra with grating, Dispersive power, Resolving power, Rayleigh’s criterion of resolution, Resolving power of grating.

### Unit-4: Fiber Optics & Laser

Fibre Optics: Principle and construction of optical fiber, Acceptance angle, Numerical aperture, Acceptance cone, Step index and graded index fibers, Fiber optic communication principle, Attenuation, Dispersion, Application of fiber. Laser: Absorption of radiation, Spontaneous and stimulated emission of radiation, Population inversion, Einstein’s Coefficients, Principles of laser action, Solid state Laser (Ruby laser) and Gas Laser (He-Ne laser), Laser applications.

### Unit-5: Superconductors and Nano-Materials:

Superconductors: Temperature dependence of resistivity in superconducting materials, Meissner effect, Temperature dependence of critical field, Persistent current, Type I and Type II superconductors, High temperature superconductors, Properties and Applications of Super-conductors. Nano-Materials: Introduction and properties of nano materials, Basics concept of Quantum Dots, Quantum wires and Quantum well, Fabrication of nano materials -TopDown approach (CVD) and Bottom-Up approach (Sol Gel), Properties and Application of nano materials.

__Links For Download the Notes __

**Unit-1 :** Quantum Mechanics : Download

**Unit-2:** Electromagnetic Field Theory : Download

**Unit-3:** Wave Optics : Download

** Unit-4**: Fiber Optics & Laser : Download

** Unit-5:** Superconductors and Nano-Materials: Download

__Reference Books:__

__Reference Books:__

2. Optics - Brijlal & Subramanian (S. Chand )

3. Engineering Physics: Theory and Practical- Katiyar and Pandey (Wiley India)

4. Applied Physics for Engineers- Neeraj Mehta (PHI Learning, New)

5. Engineering Physics-Malik HK and Singh AK (Mc Graw Hill)

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__HCL Coding Questions:-__

__Capgemini Coding Questions:-__

__iMocha coding Questions:-__

__Tech Mahindra coding questions:-__

__Unthinkable Solutions coding questions:-__- Swap the adjacent characters of the string
- Double the vowel characters in the string
- Character with their frequency
- Program to find the closest value

__Must check this:-__

__Companies interview:-__- Swap adjacent characters
- Double the vowel characters
- Check valid parenthesis
- Print the characters with their frequencies
- Find closest value
- Word Count
- Program of CaesarCipher
- Program to find the perfect city
- Annual Day | Tech Mahindra coding question
- Find the number of pairs in the array whose sum is equal to a given target.

__Full C course:- __

__Key points:-__

- How to set limit in the floating value in python
- What is boolean data type
- How to print any character without using format specifier
- How to check that given number is power of 2 or not
- How to fix limit in double and floating numbers after dot (.) in c++
- How to print a double or floating point number in scientific notation and fixed notation
- How to take input a string in c
- How to reduce the execution time of program in c++.

__Cracking the coding interview:-__

__Array and string:-__

__Tree and graph:-__

__Hackerearth Problems:-__

- Very Cool numbers | Hacker earth solution
- Vowel Recognition | Hackerearth practice problem solution
- Birthday party | Hacker earth solution
- Most frequent | hacker earth problem solution
- program to find symetric difference of two sets
- cost of balloons | Hacker earth problem solution
- Chacha o chacha | hacker earth problem solution
- jadu and dna | hacker earth solution
- Bricks game | hacker earth problem
- Anti-Palindrome strings | hacker earth solution
- connected components in the graph | hacker earth data structure
- odd one out || hacker earth problem solution
- Minimum addition | Hackerearth Practice problem
- The magical mountain | Hackerearth Practice problem
- The first overtake | Hackerearth Practice problem

__Hackerrank Problems:-__- Playing With Characters | Hackerrank practice problem solution
- Sum and Difference of Two Numbers | hackerrank practice problem solution
- Functions in C | hackerrank practice problem solution
- Pointers in C | hackerrank practice problem solution
- Conditional Statements in C | Hackerrank practice problem solution
- For Loop in C | hackerrank practice problem solution
- Sum of Digits of a Five Digit Number | hackerrank practice problem solution
- 1D Arrays in C | hackerrank practice problem solution
- Array Reversal | hackerrank practice problem solution
- Printing Tokens | hackerrank practice problem solution
- Digit Frequency | hackerrank practice problem solution
- Calculate the Nth term | hackerrank practice problem solution

__Data structure:-__

- Program to find cycle in the graph
- Implementation of singly link list
- Implementation of queue by using link list
- Algorithm of quick sort
- stack by using link list
- program to find preorder post order and inorder of the binary search tree
- Minimum weight of spanning tree
- Preorder, inorder and post order traversal of the tree

__ MCQs:-__