Home
Class 12
PHYSICS
In the phonomenon of electric discharge ...

In the phonomenon of electric discharge through gases at low pressure, the cloured glow in the tube appears as a result of

A

Collisions between the charged particles emitted from the cathode and the atoms of the gas

B

Collision between different electrons of the atoms of the gas

C

Excitation of electrons in the atoms

D

Collision between the atoms of the gas

Text Solution

Verified by Experts

The correct Answer is:
A
It is due to collision of charged particles emitted from the cathode and the atom of the gas.
Promotional Banner

Topper's Solved these Questions

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise NCERT BASED QUESTIONS (X-Rays)|34 Videos

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise ASSERTION & REASON|20 Videos

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos

Similar Questions

Explore conceptually related problems

In the phenomenon of electric discharge through gases at low pressure , the coloured glow in the tube appears as a result of

When electric discharge is pressed through neon at low pressure, the colour of the glow is

Assertion : Light is produced in gases in the process of electric discharge through them at high pressure. Reason : At high pressure electrons of gaseous atoms collide and reach and excited state.

Assertion (A), study of discharge of electricity through gases at low pressure resulted in the discovery of cathod rays . Reason (R ): cathod rays are deflected by both magnetic and electric fields and the direction of deflection shows that they are nagatievly charged .

Glow in discharge tube is due to

Goldstein's experiments which involved passing high voltage electricity through gases at very low pressure resulted in the discovery of :

ERRORLESS-ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY-PAST YEARS QUESTIONS
  1. Gases begin to conduct electricity at low pressure, because

    Text Solution

    |

  2. In the phonomenon of electric discharge through gases at low pressure,...

    Text Solution

    |

  3. In a discharge tube ionisation of enclosed gas is produced due to coll...

    Text Solution

    |

  4. The current conduction in a discharge tube is due to -

    Text Solution

    |

  5. A charged oil drop of mass 2.5xx10^(-7)kg is in space between the two ...

    Text Solution

    |

  6. An oil drop carrying a charge q has a mass m kg. If is falling freely ...

    Text Solution

    |

  7. In millikan oil drop experiment a charged drop falls with a terminal v...

    Text Solution

    |

  8. An electron is accelerated through a potential difference of 45.5 V. t...

    Text Solution

    |

  9. A proton and an alpha particle both enter a region of uniform magnetic...

    Text Solution

    |

  10. Consider 3^(rd) orbit of He^(+) (Helium), using non-relativistic appro...

    Text Solution

    |

  11. Particle nature and wave nature of electromagnetic waves and electrons...

    Text Solution

    |

  12. A particle of mass 1 mg has the same wavelength as an electron moving ...

    Text Solution

    |

  13. An electron of mass m when accelerated through a potential difference ...

    Text Solution

    |

  14. If an electron and a photon propagate in the form of waves having the ...

    Text Solution

    |

  15. The speed of an electron having a wavelength of 10^(-10) m is

    Text Solution

    |

  16. The wavelength lamda(e) of an electron and lamda(p) of a photon of sam...

    Text Solution

    |

  17. If alpha,beta and gamma rays carry same momentum, which has the longes...

    Text Solution

    |

  18. Electrons used in an electron microscope are accelerated by a voltage ...

    Text Solution

    |

  19. If the kinetic energy of the particle is increased to 16 times its pre...

    Text Solution

    |

  20. When the mkomentum of a proton is changed by an amount p(0), the corre...

    Text Solution

    |