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Physics Test 19...

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  • Question 1
    4 / -1

    If a long hollow copper pipe carries a current then magnetic field produced will be

  • Question 2
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    A chain reaction in fission of uranium is possible because

  • Question 3
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    Two bodies of mass 10 kg and 5 kg moving in concentric orbits of radii R and r such that their periods are the same. Then the ratio between their centripetal acceleration is

  • Question 4
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    When there is an electric current through a conducting wire along its length then an electric field must exist

  • Question 5
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    In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-

    Assertion(A):All radio-active elements are finally converted into lead.

    Reason(R):All the elements above lead are unstable

  • Question 6
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    The moment of inertia of a uniform disc about an axis passing through its centre and perpendicular to its plane is 1kg - m2. It is rotating with an angular velocity 100 radians/second. Another identical disc is gently placed on it so that their centres coincide. Now these two discs together continue to rotate about the same axis. Then the loss in kinetic energy in kilo joules is

  • Question 7
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    The internal energy of the gas increases when

  • Question 8
    4 / -1

    The dimensional equation for magnetic flux is

  • Question 9
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    If T is the reverberation time of an auditorium of volume V, then

  • Question 10
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    Directions For Questions

    Consider the following statements.

    (i) All isotopes of an element have the same number of neutrons.

    (ii) Only one isotope of an element can be stable and non-radioactive.

    (iii) All elements have isotopes.

    (iv) All isotopes of Carbon can form chemical compounds with Oxygen-16.

    ...view full instructions

    The correct option regarding an isotope is?

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