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Value of e/m (specific charge) of the ca...

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

A

depends on potential difference of cathode and anode

B

depends on nature of gas in the discharge tube

C

is independet of material of cathod eor gas in tube

D

depends on nature of metal used for cathode

Text Solution

Verified by Experts

The correct Answer is:
C
The value of e/m was found to be independent of the nature of the material/metal used as the cathode (emitter) or the gas introduced in the discharge tube. This observation suggested the universality of the cathode ray particles.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. Glow in discharge tube is due to

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

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

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

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

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

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

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  8. Positive rays are very identical to

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  9. Few metals when irradiated with ultraviolet light emits

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

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

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

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

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  14. Canal rays are

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

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  16. Millikan's oil drop experiment established that

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

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

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

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  20. If the work function for a certain metal is 3.2 xx 10^(-19) joule and ...

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