# Applied Physics 2 CBCGS 2017-2018 BE Marine Engineering Semester 2 (FE First Year) Question Paper Solution

Applied Physics 2 [CBCGS]
Date: June 2018

1) Question no is compulsory .

2) Attempt any three question from no . Q . 2 to Q . 6 .

 1
 1.a

Explain how interference in wedge shaped film is used to test optical flatness of given glass plate.

Concept: Wedge Shaped Film(Angle of Wedge and Thickness Measurement)
Chapter:  Interference and Diffraction of Light
 1.b

What is diffraction grating? What is the advantage of increasing the number of lines in the grating?

Concept: Diffraction Grating
Chapter:  Interference and Diffraction of Light
 1.c

With neat ray diagram explain the concept of total internal reflection (TIR).

Concept: Total Internal Reflection
Chapter:  Fibre Optics
 1.d

Differentiate between spontaneous and stimulated emission.

Concept: Spontaneous Emission and Stimulated Emission
Chapter:  Lasers
 1.e

Find cylindrical co-ordinates of a point (3𝒊̅ + 4𝒋̅ + 𝒌̅)

Concept: Cylindrical and Spherical Coordinate System
Chapter:  Electrodynamics
 1.f

In Newtons’s ring experiment,what will be the order of dark ring which will have double the diameter of 40th dark ring?

Concept: Newton’S Rings
Chapter:  Interference and Diffraction of Light
 1.g

Draw the block diagram of cathode ray tube and briefly explain its parts.

Concept: Cathode Ray Tube (Crt)
Chapter:  Charge Particle in Electric and Magnetic Fields
 2
 2.a

Derive the conditions of maxima and minima due to interference of light reflected from thin film of uniform thickness.

Concept: Interference in Thin Film of Constant Thickness Due to Reflected and Transmitted Light
Chapter:  Interference and Diffraction of Light
 2.b

Derive the formula for numerical aperture of step index fibre and give it’s physical significance.The N.A of of an optical fibre is 0.5 and the core refractive index is 1.54.Find the refractive index of cladding.

Concept: Numerical Aperture
Chapter:  Fibre Optics
 3
 3.a

Discuss the Fraunhoffer diffraction at single slit and obtain the condition for minima.
In plane transmission grating the angle of diffraction for second order principal maxima for wavelength 5 x 10-5 is 35o. Calculate number of lines/cm for this diffraction grating.

Concept: Diffraction Grating
Chapter:  Interference and Diffraction of Light
 3.b

What is the difference between photography and holography?
Explain holography technique to obtain 3D image of an object.

Concept: Applications of Laser - Holography (Construction and Reconstruction of Holograms)
Chapter:  Lasers
 4
 4.a

Find the divergence of vector field F=x2yz𝒊 ̅+ xz𝒋̅

Concept: Scaler and Vector Field
Chapter:  Electrodynamics
 4.b

Explain how A.C voltage and its frequency is measured using CRO.

Concept: Application of Cro
Chapter:  Charge Particle in Electric and Magnetic Fields
 4.c

A wedged shaped air film having an angle of 40 seconds is illuminated by monochromatic light and fringes are observed vertically through a microscope. The distance measured between consecutive fringes is 0.12 cm. Calculate wavelength of light used.

Concept: Wedge Shaped Film(Angle of Wedge and Thickness Measurement)
Chapter:  Interference and Diffraction of Light
 5
 5.a

Explain Newton’s ring experiment and show that diameters of nth dark rings are proportional to square root of natural numbers.

Concept: Newton’S Rings
Chapter:  Interference and Diffraction of Light
 5.b

Write Maxwell’s equation and give its physical significance.

Concept: Determination of Maxwell’S Four Equations
Chapter:  Electrodynamics
 5.c

Explain construction and working of atomic force microscope.

Concept: Important Tools in Nanotechnology - Atomic Force Microscope
Chapter:  Nanoscience and Nanotechnology
 6
 6.a

Explain different types of carbon nanotubes and give its applications.

Concept: Nano Materials - Properties and Applications of Nanomaterials
Chapter:  Nanoscience and Nanotechnology
 6.b

Explain construction and working of Nd:YAG LASER.

Concept: Spontaneous Emission and Stimulated Emission - Nd:Yag Lase
Chapter:  Lasers
 6.c

Write a note on electrostatic focusing.

Concept: Electrostatic Focusing
Chapter:  Charge Particle in Electric and Magnetic Fields

#### Request Question Paper

If you dont find a question paper, kindly write to us

View All Requests

#### Submit Question Paper

Help us maintain new question papers on Shaalaa.com, so we can continue to help students

only jpg, png and pdf files

## University of Mumbai previous year question papers Semester 2 (FE First Year) Applied Physics 2 with solutions 2017 - 2018

University of Mumbai Semester 2 (FE First Year) Applied Physics 2 question paper solution is key to score more marks in final exams. Students who have used our past year paper solution have significantly improved in speed and boosted their confidence to solve any question in the examination. Our University of Mumbai Semester 2 (FE First Year) Applied Physics 2 question paper 2018 serve as a catalyst to prepare for your Applied Physics 2 board examination.
Previous year Question paper for University of Mumbai Semester 2 (FE First Year) Applied Physics 2-2018 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
By referring the question paper Solutions for Applied Physics 2, you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of University of Mumbai Semester 2 (FE First Year).

How University of Mumbai Semester 2 (FE First Year) Question Paper solutions Help Students ?
• Question paper solutions for Applied Physics 2 will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.