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Glow in discharge tube is due to...

Glow in discharge tube is due to

A

X-rays

B

positive rays

C

cathode rays

D

collision of gas ions

Text Solution

Verified by Experts

The correct Answer is:
C
Glow is due to the radiation which appeared to be coming from the cathode. These cathode rays were discovered, in 1870 by william crookes who later, in 1879, suggested that these rays consisted of streams of fast moving negatively charged particles.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. Cathode rays are

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  2. Glow in discharge tube is due to

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  3. Cathode rays are streams of fast moving regatively charged particles. ...

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  4. Value of e/m (specific charge) of the cathode ray particles

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  5. When electric field is applied between cathode annd anode, at pressure...

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  6. The colour of the positive column ina gas discharge tube depends on

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  7. In Millikan's oil drop experiment, a charged oil drop of mass 3.2xx10...

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  8. The specific charge of a proton is 9.6xx10^(7)"C kg"^(-1). The speci...

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  9. Positive rays are very identical to

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  10. Few metals when irradiated with ultraviolet light emits

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  11. Non-dependence of e/m oof the cathode ray particles on nature of the g...

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  12. The velocity of electrons emitted from the electron gun can be increas...

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  13. A beam of cathode rays is subjected to crossed electric (E ) and magn...

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  14. In the phenomenon of electric discharge through gases at low pressure ...

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  15. Canal rays are

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  16. Cathode rays enter a magnetic field making oblique angle with the line...

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  17. Millikan's oil drop experiment established that

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  18. The photoelectric threshould wavelength for a metal surface is 6600 Å....

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  19. Ligth of wavelength 4000 Å is incident on a metal plate whose work fun...

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  20. The frequency of incident light falling on a photosensitive metal plat...

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