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Physics Test-14...

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  • Question 1
    4 / -1

    Two free protons are separated by a distance of 1 Å. If they are released, the kinetic energy of each proton when at infinite separation is:

  • Question 2
    4 / -1

    Due to an acceleration of \(4\) m/s\(2\) the velocity of a body increases from \(10\) m/s to \(30\) m/s in a certain period. Find the displacement of the body in that period.

  • Question 3
    4 / -1

    A particle of mass M, originally at rest is subjected to a force whose direction is constant but whose magnitude varies with the time according to the relation.

    \(F=F_{0}\left[l-\left(\frac{t-T}{R}\right)^{2}\right]\)
    where F0 and T are constant. The force acts only for the time interval 2T. Find the velocity v of the particle after time 2T

  • Question 4
    4 / -1

    Calculate the M.l. of a thin uniform ring about an axis tangent to the ring and in a plane of the ring, if its M.I. about an axis passing through the centre and perpendicular to plane is \(4 \mathrm{kgm}^{2}\).

  • Question 5
    4 / -1

    Which one does not involve chemical effect of electric current?

  • Question 6
    4 / -1

    Write an expression for the work done when a force is acting on an object in the direction of its displacement.

  • Question 7
    4 / -1

    What will be the current supplied by the battery in the circuit shown here?

  • Question 8
    4 / -1

    Momentum of a system of particles is conserved if:

  • Question 9
    4 / -1

    If accelerating potential increases from \(20 KV\) to \(80 KV\) in an electron microscope, its resolving power \(R\) would change to:

  • Question 10
    4 / -1

    The unit of overall coefficient of heat transfer is:

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