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A particle which has zero rest mass and ...

A particle which has zero rest mass and non - zero energy and momentum must travel with a speed

A

which is infinite

B

equal to C, the speed of light in vacuum

C

less than C

D

greater than C

Text Solution

Verified by Experts

The correct Answer is:
B
The praticle is a photon.
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MARVEL PUBLICATION-ELECTRONS AND PHOTONS -TEST YOUR GRASP - 17
  1. A particle which has zero rest mass and non - zero energy and momentum...

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  2. The energy of a photon of wavelength 4000 Å is (use h=6.66xx10^(-34...

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  3. In a photoelectric experiment, the reciprocal of the slope of the st...

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  4. The momentum of a photon of an electromagnetic radiation is 3.3xx10^(-...

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  5. If the threshold frequency for photoemission on a metal corresponds t...

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  6. Photons of energy 5.5 eV are incident on a metal surface. If the stopp...

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  7. When light of energy 2.5 eV falls on a metal surface, the maximum K.E....

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  8. The threshold energy of a surface is 2 eV. When irradiated with some r...

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  9. Sodium and copper have work functions of 2.3 eV and 4.5 eV. The ratio ...

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  10. The surface of a metal is illuminated with light of wavelength 400 nm....

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  11. The current in a photocell can be just reduced to zero by a potential ...

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  12. A lamp is placed at a distance of 8 cm from a photocell and the microa...

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  13. The cathode of a photoelectric cell is changed such that the work func...

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  14. The wavelength of the photons are 4500 Å and 6000 Å. The ratio of thei...

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  15. An AIR station is broadcasting the waves of wavelength 300 metres. If ...

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  16. For a photosensitive metal surface the graph of the stopping potential...

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