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Atoms Test - 28...

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  • Question 1
    1 / -0

    In the hydrogen atom in the ground state

  • Question 2
    1 / -0

    The radius of shortest orbit in one electron system is $$18 $$pm. It may be

  • Question 3
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    A cathode ray tube  has a potential difference of V volt between the cathode and the anode. The speed of cathode rays is given by

  • Question 4
    1 / -0

    The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is made on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.

  • Question 5
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    The current in a photoelectric tube

  • Question 6
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    Which of the following products in a hydrogen atom is independent of principal quantum number $$n$$ ?

  • Question 7
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    When a photomultiplier tube was used , the photo current recorded is 60 $$\mu A$$. The actual photo current is

  • Question 8
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    If the spins of electrons of atoms in a substance are paired, then the substance will have

  • Question 9
    1 / -0

    Cathode ray oscillograph is used for

  • Question 10
    1 / -0

    Raman effect shows

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