STUPIDSID
1
What is acoustic grating?
2 M
2
What is inverse pizoelectric effect?
2 M
3
Explain stimulated emission.
2 M
4
Name any two uses of lasers in medicine.
2 M
5
Define total internal reflection.
2 M
6
Calculate the numerical aperture and hence the acceptance angle for an optical fiber whose core and cladding has refractive index of 1.59 and 1.40 respectively.
2 M
7
Give the significance of wave function.
2 M
8
Write Plank's rediation formula.
2 M
9
What are Bravais lattices?
2 M
10
What are lattice parameter of a unit cell?
2 M
11.(a)(i)
What is the phenomenon of magnetostriction? Using that phenomenon explain how high frequency sound waves are produced.
4 M
11.(a)(ii)
A nickel crystal of length 10cm with density 8.1 × 10-1 N/m2 is used in a magnetostrictive oscillator.Determine the fundamental frequency of the ultrasonic waves generated.
4 M
11.(b)(i)
Explain in detail how a A-Scan technique is employed to locate a defect.
12 M
11.(b)(ii)
Find the depth of a submarine if an ultrasonic pulse reflected from the submarine is received 0.33 sec after sending out the ultrasonic waves.Gives the sound velocity in sea water is 1440 m/sec
4 M
12.(a)
Describe the construction and working of CO2 laser and their uses
16 M
12.(b)
Describe the construction and working of He-Ne laser and their uses
16 M
13.(a)
Give an account of fiber optic communication system and its advantages
16 M
13.(b)
Discuss about the various types of optical fibers.
16 M
14.(a)
Give an account of scanning Electron Microscope.
16 M
14.(b)
Derive Schrodinger time dependent wave equation.
16 M
15.(a)
What are Miller indices? Show that for a cubic lattice the distance between two successive (h k 1)planes is given by d=a[ d=a/ sqrt{h^{2}+k^{2}+k^{2}} ]
16 M
15.(b)
Calculate the number of atoms per unit cell,coordination number and packing factor for F.C.C and B.C.C structures.
16 M
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