Doubtly : Engineering - Notes, Viva, Questions, and Answers

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Light is incident normally on a grating 0.25 cm wide with 1250 lines.

answered Oct 5, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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1 answer 86 views

We want answer of question

answered Aug 12, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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Calculate the V number of an optical fibre having numerical aperture 0.25

answered Apr 27, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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What is pumping in LASER? Give the types of pumping.

answered Apr 27, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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1 answer 78 views

Calculate the V number of an optical fibre having numerical aperture 0.25 and core diameter 20 μm

answered Apr 27, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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1 answer 133 views

What is Rayleigh’s criterion of resolution? Define resolving power of grating?

answered Apr 27, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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Why the Newton’s rings are circular and centre of interference pattern (reflected) is dark?

answered Apr 27, 2023 in Engineering Physics 2 by Doubtly (98.9k points)

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University question bank solution sem2 engineeting

asked Jun 28, 2022 in Engineering Physics 2 by Amita Ghosalakar

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A step index fiber has a core diameter of 29 x10-6 m. the refractive indices of core and cladding

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Derive Gauss law for static electric and magnetic field in differential and integral form

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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What is the highest order spectrum, which may be seen with monochromatic light of wavelength 6000

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Explain the concept of time dilation and deduce an expression for it. A particle moving with a speed of 0.7c.

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Explain the construction and working of a Transmission Electron microscope with a schematic diagram

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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State Maxwell’s equations in differential form in a medium, in the presence of charges and currents

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Describe any two methods to synthesize nanomaterials.

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Describe the physical significance of gradient, Divergence and Curl

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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If \(\vec{A}= xyi – 8xy^2z^2j + 2xyzk \). Find \( \vec{∇}\vec{A} \ at \ point (1,-2, 4)\)

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Derive the expression for the Numerical aperture for a step index fiber

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Draw and explain energy level diagram of Nd: YAG Laser.

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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Prove that x 2+y2+z2 -c2 t 2 is invariant under Lorentz transformation.

asked Jun 19, 2022 in Engineering Physics 2 by MrRam (2.0k points)

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