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Assertion: The force of repulsion betwee...

Assertion: The force of repulsion between atomic nucleus and `alpha`-particle varies with distance according to inverse square law.
Reason: Rutherford did `alpha`-particles scattering experiment.

A

Statement-1 is True, Statement, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.

B

Statement-1 is True, Statement-2 is True: Statement-2 is NOT a correct explanation for Statement-1.

C

Statement-1 is Faslse, Statement-2 is True.

D

Statement-1 is True, Statement-2 is False.

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  2. Assertion: Bohr had to postulate that the electrons in stationary orbi...

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  4. Assertion: Hydrogen atom consists of anly one electron but its emissio...

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  5. The potential energy associated with an electron in the orbit

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  6. Shows the energy levels for an electron in a certain atom. Which trans...

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  7. Electrons in a certain energy level n=n(1) can emit 3 spectral lines. ...

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  8. In Rutherford scattering experiment, the number of alpha-particles sca...

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  9. In the Bohr model an electron moves in a circular orbit around the pro...

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  10. A 12.5 eV electron beam is used to excite a gaseous hydrogen atom at r...

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  11. A hydrogen atom and a Li^(2+) ion are both in the second excited stat...

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  12. The radius of hydrogen atom in its ground state is 5.3 xx 10^(-11)m. A...

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  13. When hydrogen atom is in first excited level, its radius is….its groun...

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  14. Consider 3rd orbit of He^(+) (Helium) using nonrelativistic approach t...

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  15. An electron in the hydrogen atom jumps from excited state n to the gro...

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  16. The electron in a hydrogen atom makes a transition from an excited sta...

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  17. As energy of 24.6 eV is required to remove one of the required to remo...

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  18. One of the lines in the emission spectrum of Li^(2+) has the same wave...

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  19. If the atom(100)Fm^(257) follows the Bohr model the radius of (100)Fm^...

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  20. The energy of He+ in the ground state is -54.4 eV, then the energy of ...

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