Recent questions in First Year Engineering

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What is a grating? Define grating element? Discuss the phenomenon of Fraunhofer’s diffraction at a grating and obtain

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

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Discuss the phenomenon of Fraunhofer’s diffraction at a single slit and obtain the condition for the first minimum.

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

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With neat energy level diagram describe the construction and working of a He-Ne Laser.

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

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What are different techniques to synthesize nanomaterials? Explain any one of them in detail.

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

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State the advantages of optical fiber cables on conventional electrical cables

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Find the divergence and curl of a vector A= x2 y î + (x-y) k ̂

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Derive the expression of numerical aperture for a step index fiber. A light ray enters an optical fiber from air.

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

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Explain top down and bottom up approaches to prepare nanomaterials.

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

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Explain the construction and reconstruction of hologram.

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

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How many orders will be observed by grating having 4000 lines/cm, if it is illuminated by light of wavelength

asked Jun 19, 2022 in Engineering Physics 2 by Doubtly (98.9k points)

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Describe the types of oxide film formed in oxidation corrosion

asked Jun 13, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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What are the Characteristics of electromagnetic radiations?

asked Jun 13, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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Explain any 2 types of wet corrosion with diagram and reactions

asked Jun 13, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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What is the principle of spectroscopy?

asked Jun 13, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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Sacrificial anode method

asked Jun 13, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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Evaluate ∫∫(x2 - y2)xdx dy over the area in the first quadrant bounded by the circle x2 + y2 =a2.

asked Jun 12, 2022 in Engineering Maths 2 by Doubtly (98.9k points)

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Distinguish between Electrolytic cell and Voltaic Cell

asked Jun 11, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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Q1) Define a) corrosion b) electrode potential c) electrochemical cell d) wavelength e) electroplating

asked Jun 11, 2022 in Engineering Chemistry 2 by Doubtly (98.9k points)

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Write a program to find the largest of n numbers taken from user, using a function the array of numbers must

asked Jun 11, 2022 in C programming by Doubtly (98.9k points)

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