CSIT Entrance Preparation MCQ Questions - Hamro CSIT

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Two coherent light sources produce an interference pattern with a fringe separation of 0.5 . If the wavelength of the light is 600 nm and the distance between the sources is 0.01 m, what is the distance between the sources and the screen?

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Two point charges of +2 μC and −3 μC are placed 0.5 meters apart. What is the force between them? (Assume k=8.99×109 N m2/C2)

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A solenoid has a length of 0.5m and 1000 turns. If a current of 2A is passed through it, what is the magnetic field inside the solenoid? (Assume μ0 = 4π×10−7Tm/A)

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An AC circuit has a peak voltage of 220V. What is the RMS voltage?

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The work function of a metal is 2.2eV. What is the threshold frequency for photoelectric emission? (Assume h=6.63×10−34Js)

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A radioactive substance has a half-life of 5 years. What fraction of the original amount remains after 15 years?

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An ammeter reads 5A in a circuit. If the internal resistance of the ammeter is 0.1Ω, what is the voltage drop across the ammeter?

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The energy levels of a hydrogen atom are given by En=−13.6/n2eV. What is the energy of the photon emitted when an electron transitions from n = 3 to n=2?

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The standard electrode potential is measured with reference to which element?

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Which law states that the total pressure exerted by a mixture of non-reacting gases is the sum of the partial pressures of individual gases?

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