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Physics Test-13...

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  • Question 1
    4 / -1

    Which of the following is correct for entropy of an isolated system?

  • Question 2
    4 / -1

    A porter lifts a luggage of \(15\) kg from the ground and puts it on his head \(1.5\) m above the ground. Calculate the work done by him on the luggage.

  • Question 3
    4 / -1

    A body of M.I. of \(3 \mathrm{~kg}-\mathrm{m}^{2}\), rotating with an angular velocity of \(2 \mathrm{rad} / \mathrm{s}\), has the same K.E. as a mass of \(12 \mathrm{~kg}\) moving with a velocity of:

  • Question 4
    4 / -1

    Chemical effect of current is not used in:

  • Question 5
    4 / -1

    Wavelength of X-ray is of the order:

  • Question 6
    4 / -1

    _____________ diode is designed to work under breakdown region.

  • Question 7
    4 / -1

    The force per unit length is 10-3 N on the two current-carrying wires of equal length that are separated by a distance of 2 m and placed parallel to each other. If the current in both the wires is doubled and the distance between the wires is halved, then what will be the force per unit length on the wire?

  • Question 8
    4 / -1

    Rain drops are spherical because of _______________.

  • Question 9
    4 / -1

    What is the correct expression for Binding energy of a satellite.

  • Question 10
    4 / -1

    Two particles execute SHM of the same amplitude and frequency along the same straight line. If they pass one another when going in opposite directions, each time their displacement is half their amplitude, the phase difference between them is:

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