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Physics Test-22...

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  • Question 1
    4 / -1

    The instrument having its deflection depends upon average value is:

  • Question 2
    4 / -1

    Moment of inertia depends on:

  • Question 3
    4 / -1

    A refrigerator is to maintain eatables kept inside at \(9^{\circ} C\). If room temperature is \(36^{\circ} C\), calculate the coefficient of performance.

  • Question 4
    4 / -1

    \(9800\) joule of energy was spent to raise a mass of \(50 {~kg}\), the mass was raised to a height of: (take \({g}=9.8 {~m} / {s}^{2}\) )

  • Question 5
    4 / -1

    A body is moving in a low circular orbit about a planet of mass \({M}\) and radius \({R}\). The radius of the orbit can be taken to be \({R}\) itself. Then the ratio of the speed of this body in the orbit to the escape velocity from the planet is:

  • Question 6
    4 / -1

    A body of specific weight \(w_{1}\) floats on a liquid of specific weight \(w_{2}\) Then the ratio of the volume of the object above the liquid to its volume is:

  • Question 7
    4 / -1

    A dielectric slab of thickness \(1.0 cm\) and dielectric constant \(5\) is placed between the plates of a parallel plate capacitor of plate area \(0.01 m ^{2}\) and separation \(2.0 cm\). Calculate the change in capacity on the introduction of the dielectric.

  • Question 8
    4 / -1

    Electroplating is based on:

  • Question 9
    4 / -1

    Electromagnetic waves:

  • Question 10
    4 / -1

    If in a p-n junction diode, a square input signal of \(10 \mathrm{~V}\) is applied as shown. Then, the output singnal across \(R L\) will be :

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