Home
Class 12
PHYSICS
Cathode rays consist of...

Cathode rays consist of

A

photons

B

electrons

C

protons

D

`alpha`-particles

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -(SHORT ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -( LONG ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED -( NUMERICAL PROBLEMS)|15 Videos

  • CURRENT ELECTRICITY

    FULL MARKS|Exercise Additional Questions Solved (Numerical Problems)|6 Videos

  • ELECTROSTATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( VII. NUMERICAL PROBLEMS )|5 Videos

Similar Questions

Explore conceptually related problems

alpha -rays consist of alpha -particles, which are _______ nuclei.

The velocity of cathode rays is upto __________ the velocity of light.

The fibres consists of ____

Chlorophyll consists of

An antibody consists of

Cathode rays are discovered by ….

FULL MARKS-DUAL NATURE OF RADIATION AND MATTER-ADDITIONAL QUESTIONS -(MULTIPLE CHOICE QUESTIONS )
  1. Photon of frequency v has a momentum associated with it. If c is the v...

    Text Solution

    |

  2. The time taken by a photoelectron to come out after photon strikes is ...

    Text Solution

    |

  3. Cathode rays consist of

    Text Solution

    |

  4. The momentum of photon whose frequency is f is

    Text Solution

    |

  5. The energy of photon of wavelength lambda is

    Text Solution

    |

  6. The ratio of the energy of a photon with lambda = 150 nm to that with ...

    Text Solution

    |

  7. Photons of 5.5 eV energy fall on the surface of the metal emitting pho...

    Text Solution

    |

  8. The wavelength of photon is proportional to (where upsilon = fequency)

    Text Solution

    |

  9. What is the energy of a photon whose wavelength is 6840 Å ?

    Text Solution

    |

  10. Momentum of photon of wavelength lambda is

    Text Solution

    |

  11. The momentum of a photon of energy 1 MeV is kg m/s will be

    Text Solution

    |

  12. If a proton and electron have the same de-Broglie wavelength, then

    Text Solution

    |

  13. Photoelectric effect can be explained by

    Text Solution

    |

  14. Which of the following waves can produce photoelectric effect ?

    Text Solution

    |

  15. Which light when falls on a metal will emit photoelectons ?

    Text Solution

    |

  16. In photoelectric effect, the KE of electrons emitted from the metal su...

    Text Solution

    |

  17. In photoelectric effect, electrons are ejected from metals, if the inc...

    Text Solution

    |

  18. Number of ejected photoelectrons increases with increases

    Text Solution

    |

  19. By photoelectric effect, Einstein proved

    Text Solution

    |

  20. A photocell employs photoelectric effect to convert

    Text Solution

    |