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(A) Bohr's third postulate states that t...

(A) Bohr's third postulate states that the stationary orbits are these for which the angular momentum is same integral multiple of h/`2pi`
(R) Linear momentum of the electron in the atom is quantized

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

'A' is true and 'R' is false

D

'A' is false and 'R' is true

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-ATOMS-EXERCISE -IB
  1. (A) The electron in the hydrogen atom passes from energy level n = 4 t...

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  2. (A) Hydrogen atom consists of only one electron but its emission spect...

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  3. (A) For the scattering of a.-particles at a large angles. only the nuc...

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  4. (A) Between any two given energy levels, the number of absorption tran...

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  5. (A) Atoms of each element are stable and emit characteristic spectrum ...

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  6. (A) Most of the mass of the atom is concen- trated in its nucleus (R...

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  7. (A) Bohr's third postulate states that the stationary orbits are these...

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  8. (A) The total energy of an electron revolving in any stationary orbit ...

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  9. (A) In tho experiment of alpha particle scattering, extremely thin gol...

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  10. (A) In alpha particle scattering number of alpha particles undergoing ...

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  11. (A) Electrons in the atom are held due to coulomb forces (R) : The a...

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  12. (A) According to electromagnetic theory an accelerated particle contin...

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  13. (A) A laser beam of 0.2W can drill holes through a metal sheet whereas...

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  14. (A) LASER is used to measure distant object as moon. (R) Lasers are ...

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  15. (A) In He-Ne laser, population inversion takes place between energy le...

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  16. (A) Crystalline solids can cause X-rays to diffract. (R) lnteratomic...

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  17. (A) In a metal all the free electrons have same energy. (R) : Electr...

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  18. (A) X-ray astronomy is possible only from satellites orbiting the eart...

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  19. (A) : Bohr's atomic model cannot be used to explain multiple electron ...

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  20. (A) Total energy of electron in an hydrogen atom is negative. (r) :...

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