Engineering FE Engineering Common Sem 2 May 2019 2019 Applied Physics II Question Paper - Mumbai University | munotes
Loading PDF...
Older exam
2019 - Applied Physics II
Semester-end · May 2019
→
Newer exam
2019 - Applied Mathematics II
Semester-end · May 2019
→
Questions asked in this paper
- (4) Figures to the right indicate marks
(2 Hours) [Total Marks: 60]
N.B.: (1) Question No. | is compulsory
(2) Attempt any three questions from remaining Question No’s 2 to 6
(4) Figures to the right indicate marks
1. Attempt any Five (15M)
a) Explain the formation of colors in thin film when it is exposed to white light
b) Write the formula for dispersive power of the grating. Explain how it can be increased
c) A bare core optical fiber with no cladding is kept in air medium and has fractional index difference
of 1.2 %. Calculate acceptance angle of the fibre
d) Differentiate between photography and holography
e) Using cylindrical coordinate system, calculate volume of the cylinder of radius r and height h
f) An electron is accelerated through a potential difference of 18 kV in a cathode ray tube. Calculate
kinetic energy and speed of the electron
g) Explain top down and bottom up approaches to prepare nanomaterials
a. What is anti-reflection coating? State the conditions for refractive index and thickness of the film in
order to act as anti-reflection coating
White light is sent vertically downward onto a horizontal thin film that is sandwiched between the
materials. The indices of the refraction are 1.8 for top material, 1.65 for thin film and 1.50 for the
bottom material. The film thickness is m. Which are the visible wavelengths (400 -700 nm)
those results in fully constructive interference at an observer above the film? (8M)
b. Give the advantageous of optical fiber cables on conventional electrical cables. Calculate core
radius required for an optical fibre to act as a single mode fibre if its core refractive index is 1.46
and cladding refractive index is 1.455 and operating wavelength is 1300 nm. (7M)
a. Explain Fraunhofer’s double slit diffraction experiment and obtain expression for resultant intensity
of light on the screen and derive the formula for missing orders in the double slit diffraction pattern
b. With energy level diagram explain the construction and working of He-Ne Laser. (7M)
a. Calculate divergence of the vector field F = . (5M)
b. Draw the block diagram of cathode ray oscilloscope (CRO) and explain the importance of time base
c. Interference fringes are produced by monochromatic light falling normally on a wedge shaped film
of refractive index 1.4. The angle of wedge is 20 seconds of an arc and the distance between
successive bright fringes is 0.25 cm. Calculate wavelength of the light used. (5 M)
a. Write Maxwell’s equations in differential form and give their physical significance. (5M)
b. The ground state and excited state of the laser is separated by 1.8 eV. Calculate the ratio
of number of atoms in the excited state to the ground state and wavelength of the radiation
c. Explain construction and working of atomic force microscope (AFM). (5 M)
a. Explain sputtering method for synthesis of nano materials. (5M)
b. Explain experimental arrangement of Newton’s rings experiment and show that diameters of dark
rings are proportional to square root of natural numbers. (5 M)
c. Anelectron enters in a uniform magnetic field B = 0.23x at angle to B. Determine
radius and pitch of the helical path. Assume electron speed to be 3x10’ m/sec. (5 M)
N.B.: (1) Question No. | is compulsory
(2) Attempt any three questions from remaining Question No’s 2 to 6
(4) Figures to the right indicate marks
1. Attempt any Five (15M)
a) Explain the formation of colors in thin film when it is exposed to white light
b) Write the formula for dispersive power of the grating. Explain how it can be increased
c) A bare core optical fiber with no cladding is kept in air medium and has fractional index difference
of 1.2 %. Calculate acceptance angle of the fibre
d) Differentiate between photography and holography
e) Using cylindrical coordinate system, calculate volume of the cylinder of radius r and height h
f) An electron is accelerated through a potential difference of 18 kV in a cathode ray tube. Calculate
kinetic energy and speed of the electron
g) Explain top down and bottom up approaches to prepare nanomaterials
a. What is anti-reflection coating? State the conditions for refractive index and thickness of the film in
order to act as anti-reflection coating
White light is sent vertically downward onto a horizontal thin film that is sandwiched between the
materials. The indices of the refraction are 1.8 for top material, 1.65 for thin film and 1.50 for the
bottom material. The film thickness is m. Which are the visible wavelengths (400 -700 nm)
those results in fully constructive interference at an observer above the film? (8M)
b. Give the advantageous of optical fiber cables on conventional electrical cables. Calculate core
radius required for an optical fibre to act as a single mode fibre if its core refractive index is 1.46
and cladding refractive index is 1.455 and operating wavelength is 1300 nm. (7M)
a. Explain Fraunhofer’s double slit diffraction experiment and obtain expression for resultant intensity
of light on the screen and derive the formula for missing orders in the double slit diffraction pattern
b. With energy level diagram explain the construction and working of He-Ne Laser. (7M)
a. Calculate divergence of the vector field F = . (5M)
b. Draw the block diagram of cathode ray oscilloscope (CRO) and explain the importance of time base
c. Interference fringes are produced by monochromatic light falling normally on a wedge shaped film
of refractive index 1.4. The angle of wedge is 20 seconds of an arc and the distance between
successive bright fringes is 0.25 cm. Calculate wavelength of the light used. (5 M)
a. Write Maxwell’s equations in differential form and give their physical significance. (5M)
b. The ground state and excited state of the laser is separated by 1.8 eV. Calculate the ratio
of number of atoms in the excited state to the ground state and wavelength of the radiation
c. Explain construction and working of atomic force microscope (AFM). (5 M)
a. Explain sputtering method for synthesis of nano materials. (5M)
b. Explain experimental arrangement of Newton’s rings experiment and show that diameters of dark
rings are proportional to square root of natural numbers. (5 M)
c. Anelectron enters in a uniform magnetic field B = 0.23x at angle to B. Determine
radius and pitch of the helical path. Assume electron speed to be 3x10’ m/sec. (5 M)
Read from the scan above, so a character or two may differ. The scan is the original.
Something wrong on this page? Report it and we will check it against the scan.
Quick Help
No. The full paper opens straight away, with no login and nothing to pay.
Related Resources
Something wrong with this paper? Report it.
Connected Papers
Engineering / HAS · 133 papers
2023 - Applied Mathematics I
2023 - Engineering Mechanics
2023 - Engineering Mathematics I
2023 - Engineering Chemistry I
2023 - Applied Physics I
2023 - Basic Electrical Engineering
2022 - Engineering Mathematics
2022 - Applied Mathematics
2022 - Engineering Physics
2022 - BEE
2022 - Engineering Drwaing
2022 - Engineering Mechanics
2022 - EVS
2022 - Applied Mathematics
2022 - Applied Physics
2022 - Engineering Chemistry
2022 - Basic Electrical Engg
2022 - Engineering Mechanics
2022 - Applied Chemistry
2022 - R 16 Applied Mathematics I
2022 - R 16 Applied Physics I
2022 - R 16 Applied Chemistry I
2022 - R 16 Engineering Mechanics
2022 - R 16 Engineering Mechanics
2022 - R 19 Engineering Mathematics I
2022 - R 19Engineering Chemistry I
2022 - R 19 Engineering Physics I
2022 - R 19 BEE
2022 - Basic Electrical Engineering
2019 - Applied Chemistry I
2019 - Applied Chemistry I
2019 - Applied Chemistry I
2019 - Applied Chemistry I
2019 - Applied Mathematics I
2019 - Applied Mathematics I
2019 - Applied Mathematics
2019 - Applied Mathematics Choice BaseOld
2019 - Applied Physics I
2019 - Applied Physics I
2019 - Applied Physics I
2019 - Applied Physics I
2019 - Basic Electrical And Electronics Engineering
2019 - Basic Electrical Electronics Engineering
2019 - Basic Electrical Engineering
2019 - Basic Electrical Engineering
2019 - Engineering Chemistry I
2019 - Engineering Mathematics I
2019 - Engineering Mechanics
2019 - Engineering Mechanics
2019 - Engineering Mechanics I
2019 - Engineering Mechanics
2019 - Engineering Mechanics
2019 - Engineering Physics I
2019 - Evironmental Studies EVS
2019 - Evironmental Studies EVS
2019 - Evironmental StudiesEVS
2019 - Evironmental StudiesEVS
2018 - Applied Chemistry I
2018 - Applied Chemistry I
2018 - Applied Mathematics I
2018 - Applied Mathematics I
2018 - Applied Physics I
2018 - Applied Physics I
2018 - Basic Elctrical Engineering
2018 - Basic Electrical And Electronics Engineering
2018 - Engineering Mechanics
2018 - Engineering Mechanics
2018 - Evironmental StudiesEVS
2018 - Evironmental StudiesEVS
2023 - FE2Engineering Chemistry II
2023 - FE2Professional Communication And Ethicd I
2023 - FE2Applied Physics II
2023 - FE2Communication Skills
2023 - FESEM2Engineering Graphics
2023 - FE2Engineering Mathematics II
2023 - FE2Engineering Physics II
2023 - FE2Aplied Mathematics II
2023 - FE2Structured Progamming Approach
2023 - FESEM2Applied Chemistry II
2023 - FE2C Programming
2023 - FE2Engineering Drawing
2022 - Engineering Drwaing 1
2022 - Applied Chemistry
2022 - C Programming
2022 - Professional Communication And Ethics I
2022 - Engineering Mathematics
2022 - Communication Skills
2022 - Communication Skills
2022 - Engg Drawing
2022 - Engineering Graphics
2022 - Structured Programming Approach
2022 - Engineering Chemistry II
2022 - C Programming
2022 - Communication Skills
2022 - Applied Mathematics II
2022 - Engineering Mathematics II
2022 - Professional Communication And Ethics I
2022 - Engineering Physics II
2022 - Engineering Graphics
2022 - Structurd Programming Approach
2019 - Applied Chemistry II
2019 - Applied Chemistry II
2019 - Applied Chemistry II
2019 - Applied Chemistry II
2019 - Applied Mathematics II
2019 - Applied Mathematics II
2019 - Applied Mathematics II
2019 - Applied Mathematics II
2019 - Applied Physics II Open
2019 - Applied Physics II
2019 - Applied Physics II
2019 - Applied Physics II
2019 - Communication Skills
2019 - Communication Skills
2019 - Communication Skills
2019 - Communication Skills
2019 - Engineering Drawing
2019 - Engineering Drawing
2019 - Engineering Drawing
2019 - Structured Programming Approach
2019 - Structured Programming Approach
2019 - Structured Programming Approach
2018 - Applied Chemistry II
2018 - Applied Chemistry II
2018 - Applied Mathematics II
2018 - Applied Mathematics II
2018 - Applied Physics II
2018 - Applied Physics II
2018 - Communication Skills
2018 - Engineering Drawing
2018 - Engineering Drawing
2018 - Structured Programming Approach
2018 - Structured Programming Approach
Questions? Email contact@munotes.in
Done!