University of Mumbai 2007 B.Sc Computer Science Physics-I(-) - Question Paper
Physics-I
(Oct-2007)
P4/RT-EX-07-78
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TN504 [Total Marks : 60
Con. 113-07.
(2 Hours)
Instructions : - 1# All questions are compulsory.
2? Non programmable calculators are allowed. 3*Figures to the right indicate marks.
Explain Newtons Laws of motion with examples.
Q.l
Q.L
Q.2
[8]
[81
[8]
Describe the woods machine and find its expression.
What is compound pendulum? Deiive an expression for its time period.
OR
Q.2
Explain moment of inertia and radius of gyration. Write Its unit and dimension
[8] [4+4 = 8]
Q.3 (a) Explain cardinal points for a lens system with suitable diagram.
(b) Two thin convex lenses of focal length 12cm & 4cm are separated by distance of 8cm . 'Determine the position of first & second principal point & focus.
OR
What is interference of light ? Derive an expression for a intensity in a Young's double slit experiment .
[8]
Q.3
Q.4 Answer the following:
[1x4 = 4]
(A) Choose correct option in the following questions
Newtons second law is as a) F=ma b) P=ma
i)
c) E=mc d) P=mv
Law of inertia is called ; a) Newtons first Law c) Newtons third Law
ii)
b) Newtons second Law d) None of these
The radius of gyration is denoted as ; a) k b) I
iii)
c) F d) P
iv) The unit of surface energy is ; a) Joule b) N-m
c) Kg-m d) None of these
(B)(i)Diaw energy distribution curve for interference.
[11
(ii)What is chromatic aberration ?
Q.5 Deiive an expression for clausius mean free path & derive an expression [8]
for work done in isothermal change.
* >
OR
Q.5 What is adiabatic change & prove that PV7 = constant. [8]
Q.6 Derive an expression for intensity due to Frauanhoffer diffraction for [8]
double slit Sc draw it's energy distribution curve .
OR
Q.6 State Brewester's law & explain in detail prism spectra & grating spectra . [8]
Q.7 What is fiber optics ? Explain its type & applications in detail . [8]
OR
Q.7 Explain the working of COrLASER and draw its energy level diagram. [8]
Q.8 Answer the following in short: [1x6 = 6]
i). ' What is unit of Gas Constant ?
ii) What is meant by isobaric process ?
iii) What is grating element ?
iv) What is meant by positive crystal ?
v) Which pumping scheme is used in He-Ne laser ?
vi) What is meant by critical angle ?
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| Earning: Approval pending. |
