Engineering FE Engineering Common Sem 1 2023 May 2023 Applied Physics I Question Paper - Mumbai University | munotes
Loading PDF...
Older exam
2023 - Basic Electrical Engineering
Semester-end · 2023 May
→
Newer exam
2023 - Applied Mathematics I
Semester-end · 2023 May
→
Questions asked in this paper
- (4) Figures to the right indicate marks
(2 Hours) [Total Marks: 60]
N.B.: (1) Question. 1 is compulsory
(2) Attempt any three questions from the remaining questions NO.2 to 6
(4) Figures to the right indicate marks
1. Attempt any five questions from the following- 15
(a) Calculate atomic packing fraction of HCP unit cell
(b)Express de-Broglie hypothesis and calculate the De-Broglie wavelength
(c)Draw the energy band diagram for p-n junction diode in forward and reverse bias condition
(d) Define: persistent current, critical temperature, critical magnetic field
(e) What is reverberation time? Explain its formula
(f) With the help of diagram state direct and inverse piezoelectric effect
(g) The resistivity of intrinsic material at room temperature is 2 x Ohm-cm. If the mobility
of electron is 0.6 and mobility of hole is 0.2 Calculate its intrinsic
2 (a) Arrive at the statement that electron cannot survive inside the nucleus. 8
An electron has a speed of 300m/s with uncertainty of 0.01%. Find the accuracy in its
(b) A sample of semiconductor is placed in uniform magnetic induction B with sample 7
current I and thickness w then obtain the expression for (a) Hall voltage and (b) Hall
3 (a) with neat diagram of unit cell explain the structure of diamond crystal. 8
(b) Explain variation of Fermi level with temperature in extrinsic semiconductor. 7
What is the probability of an electron being thermally excited to the conduction band?
In Si at The band gap energy is 1.12eV (k=1.38X J/K)
4 (a) Distinguish between Type I and Type II superconductors. 5
(b) A class room has dimension of (20x15x10) m* the reverberation time is 3 sec. 5
Calculate the total absorption of its surfaces and average coefficient of absorption
(c) Explain the construction and working of piezoelectric oscillator? 5
5 (a) Show that for an intrinsic semiconductor, the Fermi level lies half way between 5
Conduction and valence band
(b) Find the depth of sea water from a ship on the sea surface if the time interval of 5
2 seconds is required to receive the signal back
Given that temperature of sea water Salinity of sea water = 20gm/lit
(c) The lowest energy of an electron trapped in a one dimensional box is 5
J. Calculate the width of the box. Also calculate the next two energies
in eV the particle can have?
6 (a) Define ligancy and critical radius ratio. Calculate critical radius ratio for ligancy 8. 5
(c) Explain photovoltaic effect and write a note on solar cell. 5
N.B.: (1) Question. 1 is compulsory
(2) Attempt any three questions from the remaining questions NO.2 to 6
(4) Figures to the right indicate marks
1. Attempt any five questions from the following- 15
(a) Calculate atomic packing fraction of HCP unit cell
(b)Express de-Broglie hypothesis and calculate the De-Broglie wavelength
(c)Draw the energy band diagram for p-n junction diode in forward and reverse bias condition
(d) Define: persistent current, critical temperature, critical magnetic field
(e) What is reverberation time? Explain its formula
(f) With the help of diagram state direct and inverse piezoelectric effect
(g) The resistivity of intrinsic material at room temperature is 2 x Ohm-cm. If the mobility
of electron is 0.6 and mobility of hole is 0.2 Calculate its intrinsic
2 (a) Arrive at the statement that electron cannot survive inside the nucleus. 8
An electron has a speed of 300m/s with uncertainty of 0.01%. Find the accuracy in its
(b) A sample of semiconductor is placed in uniform magnetic induction B with sample 7
current I and thickness w then obtain the expression for (a) Hall voltage and (b) Hall
3 (a) with neat diagram of unit cell explain the structure of diamond crystal. 8
(b) Explain variation of Fermi level with temperature in extrinsic semiconductor. 7
What is the probability of an electron being thermally excited to the conduction band?
In Si at The band gap energy is 1.12eV (k=1.38X J/K)
4 (a) Distinguish between Type I and Type II superconductors. 5
(b) A class room has dimension of (20x15x10) m* the reverberation time is 3 sec. 5
Calculate the total absorption of its surfaces and average coefficient of absorption
(c) Explain the construction and working of piezoelectric oscillator? 5
5 (a) Show that for an intrinsic semiconductor, the Fermi level lies half way between 5
Conduction and valence band
(b) Find the depth of sea water from a ship on the sea surface if the time interval of 5
2 seconds is required to receive the signal back
Given that temperature of sea water Salinity of sea water = 20gm/lit
(c) The lowest energy of an electron trapped in a one dimensional box is 5
J. Calculate the width of the box. Also calculate the next two energies
in eV the particle can have?
6 (a) Define ligancy and critical radius ratio. Calculate critical radius ratio for ligancy 8. 5
(c) Explain photovoltaic effect and write a note on solar cell. 5
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 Open
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
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!