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When an electron of hydrogen like atom j...

When an electron of hydrogen like atom jumps from a higher energy level to a lower energy level.

A

Angular momentum of the electron remains constant

B

Kinetic energy increases

C

Wavelength of de-Broglie wave, associated with motion of the electron, decreases

D

none of these

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PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Advance MCQ
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  2. H^(+), He^(+) and O^(++) all having the same kinetic energy pass thro...

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  3. When an electron of hydrogen like atom jumps from a higher energy leve...

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  4. Light rays are incident on an opaque sheet. Then they:

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  5. The angular momentum of an electron in an orbit is quantized because:

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  7. Two photocathodes are illuminated by the light emitted by a single sou...

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  8. Photoelectric effect supports quantum nature of light because (a) th...

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  9. The momentum of a single photon of red light of fequency 400 xx 10^(12...

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  10. When a monochromatic point source of light is at a distance of 0.2 m...

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  11. In a photoelectric experiment, the collector plate is at 2.0 V with re...

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  12. A small mirror of area A and mass m is suspended in a vertical plane b...

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  13. When photons of energy 4.25 eV strike the surface of metal A, the ejec...

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  14. In photoelectric effect, stopping potential depends on

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  15. Thefigure shows the results of an experiment involving photoelectric e...

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  16. the photoelectric effect can not be explained by the wave theory of li...

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  17. A non-monochromatic light is used in an experiment on photoelectric ef...

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  18. In a phtoelectron effect energy of photon is directly proportional to ...

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  19. Suppose frequency of emitted photon is f(0) when the electron of a sta...

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  20. A small miror is suspended by a thread as shownin figure 2.35. A short...

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