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Total energy of an electron in an atom i...

Total energy of an electron in an atom is negative . What does it signify ?

A

electron is bound to nucleus

B

the force between electron and nucleus is attractive or repulsive

C

the centripetal force provided for revolution is provided by electrostatic force of attraction

D

both (1) & (2)

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The correct Answer is:
A
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AAKASH INSTITUTE-Mock Test 38: PHYSICS-Example
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  2. The work function of two metals metal A and metal B are 6.5 eV and 4.5...

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  3. The wave like character is significant and measurable for

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  4. If the material particle is moving with velocity v and the velocity of...

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  5. The material having minimum work function is

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  6. The possible value of radius of orbit of H-atom is (lambda is the de-B...

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  7. The ionisation energy of electron (E) is second orbit of hydrogen atom...

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  8. The minimum energy needed to separate the constituent of nucieons sys...

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  9. Find the longest wavelength present in the Balmer series of hydrogen.

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  10. In alpha-particle scattering experiment, the perpendicular distance(b)...

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  11. The total energy (E) of the electron is an orbit of radius r in hydrog...

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  12. According to Bohr's theory the possible value of angular momentum of a...

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  13. For hydrogen atom, energy of nth level is given by

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  14. Calculate the value of Rydberg's constant.

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  15. The ratio of the velocity of electron in 3rd and 5th orbit of hydrogen...

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  16. According to Rutherford, which force was responsible for certripetal a...

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  17. In x-ray spectra, the Kgamma lines in k series corresponds to

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  18. Total energy of an electron in an atom is negative . What does it sign...

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  19. In mu-particle scattering experiment, the expression of distance of cl...

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  20. In Lyman series the wavelength lambda of emitted radiation is given by...

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