sc JNTUH R18 B.Tech Applied Physics Important Questions 2021 – Cynohub


JNTUH R18 B.Tech Applied Physics Important Questions 2021

JNTUH R18 B.Tech Important Questions

JNTUH R18 B.Tech Applied Physics Important Questions 2021

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Applied Physics is pure physics which is used in Engineering. It is a common subject which is thought in the first year of many Engineering colleges in India including JNUTH. Applied Physics is considered as a bridge between Engineering and Physics .


Important Questions for Applied Physics. Team Cynohub has been through several previous years papers and then curated all the important questions for Applied Physics JNTUH R18.

Note: Students can find Important Questions for Subjects on the CynoHub App. 

Click below to download the application and view  important questions for Applied Physics JNTUH R18.

Download the application by clicking here.

About CynoHub

Video Lectures – High-Quality video lectures are divided by subjects. Lectures are created to help students focus on what’s really important.

Lecture Notes – Customised lecture notes for each subject and each topic are available on the Application.

Exam Preparation – There are live classes to guide students during exams. This helps students score good grades in exams.

Job Skills – Industry-required skills are thought from the first year to secure jobs as the student’s graduate.

CynoHub has made learning super easy. Learning with CynoHub will help you improve your grades and secure a high-paying job.


 CynoHub has made learning easy. The lectures available on the mobile application are designed in a way that student understands the topic easily. The lectures are short and to the point. Each topic in each and every subject has lecture notes. Lecture notes are provided so that students can revise easily and quickly. Important questions for each subject is also available on the app. These questions are selected after going through previous years question papers. These questions will help student plan their last minute revision.


If you want to score rank 1 in your exams then you can click on the video link below. There are many such videos on the CynoHub’s YouTube channel.


Applied Physics Syllabus

Applied Physics Unit 1

Quantum Mechanics

Introduction to quantum physics, Black body radiation, Planck’s law, Photoelectric effect, Compton effect, de Broglie’s hypothesis, Wave-particle duality, Davisson and Germer experiment, Heisenberg’s Uncertainty principle, Born’s interpretation of the wave function, Schrodinger’s time-independent wave equation, Particle in a one-dimensional box.

Applied Physics Unit 2

Semiconductor Physics

Intrinsic and Extrinsic Semiconductors, Dependence of Fermi level on carrier-concentration and temperature, Carrier generation and recombination, Carrier transport: diffusion and drift, Hall effect, p-n junction diode, Zener diode and their V-I Characteristics, Bipolar Junction Transistor (BJT): Construction, Principle of operation.

Applied Physics Unit 3


Radiative and non-radiative recombination mechanisms in semiconductors, LED and semiconductor lasers: Device structure, Materials, Characteristics and figures of merit, Semiconductor photodetectors: Solar cell, PIN and Avalanche and their structure, Materials, working principle and Characteristics.

Applied Physics Unit 4

Lasers and Fibre Optics

Lasers: Introduction to interaction of radiation with matter, Coherence, Principle and working of Laser, Population inversion, Pumping, Types of Lasers: Ruby laser, Carbon dioxide (CO2) laser, He-Ne laser, Applications of laser. Fibre Optics: Introduction, Optical fibre as a dielectric wave guide, Total internal reflection, Acceptance angle, Acceptance cone and Numerical aperture, Step and Graded index fibres, Losses associated with optical fibres, Applications of optical fibres.

Applied Physics Unit 5

Electromagnetism and Magnetic Properties of Materials

Laws of electrostatics, Electric current and the continuity equation, Ampere’s and Faraday’s laws, Maxwell’s equations, Polarisation, Permittivity and Dielectric constant, Internal fields in a solid, Clausius-Mossotti equation, Ferroelectrics and Piezoelectrics. Magnetisation, permeability and susceptibility, Classification of magnetic materials, Ferromagnetism and ferromagnetic domains, Hysteresis, Applications of magnetic materials.


The syllabus mentioned above is covered on the mobile application. To view the video lectures and the lecture notes one has to download the application. Important questions for Applied Physics JNTUH R18  along with important questions of all the other remaining subjects are available on the  app.The app is available for free on google play store. You are just a click away from improving your grades.

CynoHub makes sure that all the Course Objectives are completed. After successfully going through all the video lectures and lecture notes the below mentioned objectives will be completed.

  • To understand the behaviour of a particle quantum mechanically.
  • To be able to distinguish pure and impure semi conductors and understand formation of P-N Junction.
  • To understand various magnetic and dielectric properties of materials.
  • To study super conductor behaviour of materials.

After completing the course the student will be able to know and understand the below mentioned concepts.So the Outcome of the course is –

  • Realize the importance of behaviour of a particle quantum mechanically.
  • Learn concentration estimation of charge carriers in semi conductors.
  • Learn various magnetic dielectric properties and apply them in engineering applications.
  • Know the basic principles and applications of super conductors.

Being a rank holder seems like a daunting task but not now. If you want to score rank 1 in exams then you should read this article. Click on the link given below and score rank 1 in your exams.


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