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3
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Draw the schematic diagram of SEM and explain its construction and working.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What are carbon nano tubes and what are their properties?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Briefly explain the production of methods of nano materials.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Explain top down and bottom up approaches in nanotechnology.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What are the application of carbon nano tubes.
engineering physics updated 4.5 years ago by krithikkm200 • 10
2
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With neat energy diagram describe the construction and working of a semiconductor diode LASER. What serve the resonant cavity in semiconductor LASER?
engineering physics updated 4.5 years ago by krithikkm200 • 10
-2
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What is Hologram? Explain the construction and reconstruction of Hologram. How is holography different than photography.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What is the difference between LED and LASER diode.
engineering physics updated 4.5 years ago by krithikkm200 • 10
4
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Write the role of resonant cavity in the operation of LASER?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What does LASER stand for? In what respect it differs from an ordinary source.
engineering physics updated 4.5 years ago by krithikkm200 • 10
4
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36k
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Explain absorption, spontaneous and stimulated emission of radiation. Discuss Einsteins coefficient and derive the relation between them?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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With a neat schematic diagram, explain electrostatic and magnetostatic focusing.
engineering physics updated 4.5 years ago by krithikkm200 • 10
1
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15k
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Draw the block diagram of CRO and explain it various parts.
engineering physics updated 4.5 years ago by krithikkm200 • 10
0
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What are the different losses in optical fiber.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Draw and explain the block diagram of a communication link in an optical fiber communication?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Would you recommended the use of optical fiber in communication system? Why? Explain the use of optical fibers in temperature sensor.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What are step index and graded index fiber. Explain their refractive index profile. Why a ray of light is Zigzag in SI fiber and spiral in GRIN fiber?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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What is dispersion in optical fiber? Mention any three-dispersion process and explain any one in detail. How is intermodal dispersion overcome in GRIN fibers?
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Describe Cartesian and cylindrical coordinate system. Write down the expression to Convert Cartesian coordinate to cylindrical coordinate and cylindrical to Cartesian.
engineering physics updated 4.5 years ago by krithikkm200 • 10
0
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What is the significance of curl of vector field.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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With a neat diagram describe construction and working of Cathode Ray Tube.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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3.2k
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Discuss the motion of electron in a non-uniform electric field
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Explain the measurement of DC voltage and frequency of AC signal using a CRO.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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3.8k
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How CRO can be used to measure phase angle between two signals.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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Why does the fringe width decrease as order increase in Newton`s ring but remain constant in a wedge shape film. How would be the interference pattern in both the cases if illuminated by white light.
engineering physics updated 4.5 years ago by krithikkm200 • 10
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