Home
Class 12
PHYSICS
The ratio of amplitude of magnetic field...

The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacumm is equal to

A

reciprocal of speed of light in vacuum

B

the ratio of magnetic permeability to the electric susceptibility of vacuum

C

unity

D

the speed of light in vacuum

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 3 (SECTION - B)|8 Videos

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 2|36 Videos

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos
MOTION-ELECTRO MAGNETIC WAVES -EXERCISE - 3 (SECTION - A)
  1. The electric and magnetic field of an electromagnetic wave is

    Text Solution

    |

  2. Assertion : Displacement current goes through the gap between the plat...

    Text Solution

    |

  3. The electric field part of an electromagnetic wave in a medium is repr...

    Text Solution

    |

  4. Which of the following statement is false for the properties of electr...

    Text Solution

    |

  5. The dimensions of (mu(0)epsilon(0))^(-1//2) are

    Text Solution

    |

  6. The electric and the magnetic field, associated with a electromagnetic...

    Text Solution

    |

  7. The decreasing order of wavelength of infrared, microwave, ultraviolet...

    Text Solution

    |

  8. The electric field associated with an electromagnetic wave in vacuum i...

    Text Solution

    |

  9. The ratio of amplitude of magnetic field to the amplitude of electric ...

    Text Solution

    |

  10. An electromagnetic wave in vacuum has the electric and magnetic field ...

    Text Solution

    |

  11. The condition under which a microwave oven heats up a food item contai...

    Text Solution

    |

  12. The energy of the electromagetic wave is of the order of 15 keV. To wh...

    Text Solution

    |

  13. A radiation of energy E falls normally on a perfectly reflecting surfa...

    Text Solution

    |

  14. A laser beam is of 9 mW, diamter = 2 mm. Then what is the amplitude of...

    Text Solution

    |

  15. The intensity of sun on earth is 1400 W/m^(2) Assuming earth to be a b...

    Text Solution

    |

  16. For an EMWave, E = E(0)sin 12 xx 10^(6) [Z-2xx10^(8)t]N/C in a med...

    Text Solution

    |

  17. If velocity of an electromagnetic wave in a medium is 3 x10^(8) m/s th...

    Text Solution

    |

  18. In the EM wave the amplitude of magnetic fild H(0) and the amplitude o...

    Text Solution

    |

  19. Out of the following options which one can be used produce a propagati...

    Text Solution

    |

  20. An EM wave is propagating in a medium whith a velocity vecv=vhati. The...

    Text Solution

    |