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Posted Date: 06 Aug 2016      Posted By:: Krishna Teja Yeluripati    Member Level: Gold  Points: 3 (Rs. 3)

2016 Acharya Nagarjuna University Bapatla Engineering College - B.Tech 1st Year - 1st Semester - Engineering Physics I - Model Paper Question paper

Course:   University/board: Acharya Nagarjuna University

Are you looking for the model papers of Bapatla Engineering College - B.Tech - Engineering Physics I? This is one such model paper. Feel free to store a copy of this model question paper and use it to prepare for your upcoming exams.

I/IV B.Tech Degree Examinations, Model Paper

First Semester

Engineering Physics I

Time : 3 hours

Maximum Marks : 60

Answer question No.1 Compulsory

Answer ONE question from each Unit

1. Briefly explain following [12 x 1 = 12M]
a) Define resolving power of a grating?
b) What is cosine law?
c) At what angle the light should be incident on a glass plate with μ=1.5967 to get a plane polarized light by reflection?
d) Define population inversion?
e) Explain the principle of an optical fiber?
f) What is the basic principle of holography?
g) State Gauss law in static electricity?
h) What is the principle of cyclotron?
i) Define pointing vector?
j) What is Tunneling effect?
k) What are the properties of wave function?
l) A microscope using photons is employed to locate an electron in an atom to within a distance of 0.2 Ao. What is the uncertainly in the momentum of the electron located in this why?

UNIT - I [1 x 12 = 12M]

2. a) Give the theory of plane diffraction grating for normal incidence?
2. b) Write a short note on quarter wave plate?
2. c) Find the separation of two points on the moon that can be resolved by a 500 cm telescope? The distance of the moon is 3.8 x 105 km. The eye is sensitive to light of wavelength 5500 Ao. (OR)
3. a) Explain the construction, working and limitations of Nicole's prism?
3. b) Describe the working of Michelson interferometer? How will you produce circular fringe with it?

UNIT - II [1 x 12 = 12M]

4. a) With the help of suitable diagram, explain the principle, construction and working of semiconductor laser?
4. b) Derive the expression for acceptance angle and Numerical aperture? (OR)
5. a) Mention the conditions and requirement of getting amplified light?
5. b) What is the principle of Holography and write few applications of it?

UNIT - III [1 x 12 = 12M]

6. a) What is Hall effect? Obtain the expression for Hall co-efficient?
6. b) Derive Maxwell's equations from the basic laws of electromagnetism? (OR)
7. a) Obtain the expression for velocity of electromagnetic wave?
7. b) Explain the radiation pressure exerted by photons.

UNIT - IV [1 x 12 = 12M]

8. a) Show that the energies of a particle in a potential box are quantized?
8. b) A particle of mass 1.67 x 10-27 kg is confirmed to the second excited state in a one dimensional potential well infinite height and width L=0.1 nm. Calculate its energy?
8. c) Discuss phenomenon of Quantum tunneling. (OR)
9. a) Through Heisenberg uncertainty explain natural width of Spectral lines.
9. b) What are the matter waves? Obtain the expression for the wavelength of matter waves?

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