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An electron in the hydrogen atom jumps f...

An electron in the hydrogen atom jumps from excited state n to the Ground state . The wavelength so emitted illuminates a photosensitive material having work function 2.75 eV. If the stopping potential of the photoelectron is 10 V, then the value of n is

A

2

B

3

C

4

D

5

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The correct Answer is:
C
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CHHAYA PUBLICATION-ATOM-EXERCISE(Multiple Choice Questions)
  1. Ionisation potential of an atom is 24.6 V . How much energy is require...

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  2. In Bohr's model of hydrogen atom ,

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  3. Ground state energy of hydrogen atom is -13.6 eV . If the electron in ...

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  4. The electron in a hydrogen atom has been excited to the n -th state. W...

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  5. If the electron in a hydrogen atom is raised to the third orbit, how m...

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  6. According to Bohr's model , the ratio of the energies of the electron...

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  7. The quantised physical quantity of an atomic electron, according to B...

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  8. An one -electron atom has an energy of -3.4 eV. The kinetic energy of...

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  9. An one -electron atom has an energy of -3.4 eV. The potential energy...

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  10. An electron is in the third orbit of a hydrogen atom. If h =6.6 xx10^...

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  11. The ratio between the radii of the fourth and the second electron orbi...

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  12. The ratio between the electron velocities in the second and in the thi...

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  13. The ratio between the electron revolution fraquencies in the first and...

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  14. In an inelastic collision an electron excites as hydrogen atom from it...

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  15. Energy required for the electron excitation in Li^(2+) from the first...

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  16. The wavelength of the first line of Lyman series for hydrogen atom is...

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  17. An electron in the hydrogen atom jumps from excited state n to the Gro...

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  18. Out of the following which one is not a possible energy for a photon t...

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  19. The wavelength lambda and the frequency f of a particular X- ray spec...

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  20. The ratio of the wavelength of K(beta) and K(alpha) spectral lines of ...

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