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The velocity of electrons emitted from t...

The velocity of electrons emitted from the electron gun can be increased by

A

increasing the filament current

B

decreasing the filament current

C

decreasing the potential difference between the anode and filament

D

increasing the potential difference between the anode and filament

Text Solution

Verified by Experts

The correct Answer is:
D
The velocity of electron emitted from the electron gun can be increased by increasing the potential difference between the anode and filament.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. Few metals when irradiated with ultraviolet light emits

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

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

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

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

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  6. Canal rays are

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

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  8. Millikan's oil drop experiment established that

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

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

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

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

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  13. Ultraviolet light of wavelength 300nn and intensity 1.0Wm^-2 falls on ...

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  14. Light of wavelength 4000 Å is incident on a sodium surface for which t...

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  15. Photoelectric emission occurs only when the incident light has more th...

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  16. A photosensitive metallic surface has work funtion hv(0). If photons o...

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  17. Radiation two photons having energies twice and five times the work fu...

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  18. The work function for metals A , B and C are respectively 1.92 eV , 2....

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  19. Silver has a work function of 4.7 eV. When ultraviolet light of wavele...

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  20. The maximum kinetic energy of emitted photoelectrons depends on the......

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