Rajiv Gandhi Proudyogiki Vishwavidyalaya 2010 B.E Engineering Physics - Question Paper
Vital No. of Questions : 10 } [ Total No. of Printed l'agcs
Roll No. *1? U.oV..
B. E. (First/Second Semester) EXAMINATION, Dec, 2010 (Non-G lading System)
(Common for ail Branches) ENGINEERING PHYSICS Time : Three Hours Maximum Marks : 100 Minimum Pass Marks : 35
Note : Attempt one question from each Unit. All questions cany equal marks.
Unit-I
1. U) What are matter waves ? Explain De-BrogUes
hypothesis and show that De-Broglie's wavelength is given by X h/P where h is Plancks constant and P is the momentum of the particle. 10
(b) Derive time independent Schrodinger wave equation.
to
2. (a) Slate and explain uncertainty principle, illustrate it
with the help of an example. 10
(b) What is Compton effect ? Give its theory and importance. U)
Unit-11
3. (a) hxpUtiii the term "interference ot light '. What arc
coherent sources ? Explain the conditions for obtaining sustained interference pattern. 10
R T. O.
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(b) In a Newtons rings experiment the diameter o( 15th dark ring was found 0*6 cm and that of 5th ring w* found O'34 cm. If radius of curvature of pJocc - * lens is 100 cm, calculate the wavelength of light. HI
4. (a) State and prove Brewsters law. 5
(b) Differentiate between the phenomenon of interference and diffraction of light, 5
(c) Sketch neat diagram of Michelsons InterferorvMer Discuss its construe ion and working in detail. 10
Unit Hi
5. (a) Describe the main components of nuclear reactor. 10 (b) Write a short note on G. M counter, 10
6* (a) Describe principle and working of cyclotron. 10 (b) Explain construction and working of Bain bridge
spectrograph. 10 UnitIV
7. (a) Describe free electron theory for metals with its
limitations. 10
(b) Discuss the applications of nanotechnology. 10
8. (a) Discuss Hall effect in detail. 10
(b) Write short notes on any two of the following :
s each
(i) Solar cells
(ii) NanomateriaLs and nanostructures
(iii) Effective mass of electron
(iv) Kronig Penny model
t * I t ait-Y
g (a) With the help ot ener& UrvW hyw cqptam wortiag and construction of any liter IS
(b) Explain an expression far autnenct ercure of a nep index fiber. 5
v*} Describe the puygahaa of ftffct m m |Mf ibtr. 5
(b) Write short nutes on arnt tbxte of k loUowng :
S eacto
(i) Optical pumping and ::wcrcc <jw$*ilarioft)
(U) V-number
(iii) Spontaneous cmtsuua w*l mulaecd ezmsskm
(iv) Einstein's cu-effioeofe
24*28
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