STUPIDSID
1
What is cavitations?
2 M
2
Why can loudspeaker not be used to produce ultrasonic?
2 M
3
Calculate the wavelength of radiation emitted by an LED made up of a semiconducting material with band gap energy 2.8 eV.
2 M
4
What are the advantages of oxygen assisted laser cutting?
2 M
5
What are the conditions to be satisfied for total internal reflection?
2 M
6
The refractive index of core and cladding are 1.60 and 1.49 respectively. Caluculate the critical angle at core-cladding interface.
2 M
7
Mention the physical significance of wave function ?
2 M
8
Define blackbody.
2 M
9
Determine the distance between adjacent atoms of platinum which has an FCC structure a=3.923 Å.
2 M
10
Define Burger vector.
2 M
Answer any one question from Q11.(a) & Q11.(b)
11. (a)
What is magnetostrictive effect? Describe with principle the magnetostriction method of producing ultrasonic.
16 M
11.(b)
Briefly explain the three types of non-destructive testing method using ultrasonic with a neat diagram.
16 M
Answer any one question from Q12.(a) & Q12.(b)
12. (a)
Explain the principle, construction and working of CO2 laser.
16 M
12. (b)
Explain holography. How will you create a hologram of an object and recreate the image of the original object?
16 M
Answer any one question from Q13.(a) & Q13.(b)
13. (a)
Explain in detail the classification of optical fibre.
16 M
13. (b)
Describe the principle of fibre optic sensors. Explain fibre optic displacement sensor and fibre optic temperature sensor.
16 M
Answer any one question from Q14.(a) & Q14.(b)
14. (a)
Derive time independent Schrodinger wave equation.
16 M
14. (b)
Explain in detail about the principle, construction and working of scanning electron microscope.
16 M
15. (b)
What is meant by crystal defect? Explain the various types of crystal defects with neat diagram.
16 M
Answer any one question from Q15.(a) & Q15.(b)
15.(a)
Define packing factor. Finding the packing factor for HCP structure.
16 M
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