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

the speed of light in vacuum

B

reciprocal of speed of light in vacuum

C

the ratio of magnetic permeability to the electric suscepitibility of vacuum

D

Unity

Text Solution

Verified by Experts

The correct Answer is:
a
As E= cB
So required ratio `(E)/(B)=(1)/(c)`
Therefore, the ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to reciprocal of speed of light.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section B - Assertion Reasoning|13 Videos

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • GEOMETRICAL OPTICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The ratio of the amplitude of the electric field to that of the magnetic field (|E|//|B|) of an electromagnetic wave travelling in vacume is always

The electric and magnetic field of an electromagnetic wave is

The electric and magnetic field of an electromagnetic wave are:

The ratio of amplitude B_(0) and E_(0) of the magnetic electric fields associated with an electromagnetic wave is

In the EM wave the amplitude of magnetic fild H_(0) and the amplitude of electric field E_(0) at any place are related as

The amplitude of magnetic field at a region carried by an electromagnetic wave is 0.1 muT . The intensity of wave is

The relation between electric field E and magnetic field H in an electromagnetic wave is

In the question 38, the amplitude of magnetic field part of the given wave is

A2Z-ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM -AIPMT/NEET Questions
  1. Which of the following is positively charged?

    Text Solution

    |

  2. Which of the following shows greenhouse effect?

    Text Solution

    |

  3. Which of the following are not electromagnetic waves ?

    Text Solution

    |

  4. The electric and magnetic field of an electromagnetic wave is

    Text Solution

    |

  5. The velocity of electromagnetic radiatior in a medium of permittivity ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  8. The electric and the magnetic field, associted with an electromagnetic...

    Text Solution

    |

  9. The dereasing order of wavelength of infrared, microwave, ultraviloet ...

    Text Solution

    |

  10. The electric field associted with an electromagnetic wave in vacuum is...

    Text Solution

    |

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

    Text Solution

    |

  12. Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly r...

    Text Solution

    |

  13. A radiation of energy E falls normally on a perfctly refelecting surfa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. A 100 Omega resistance and a capacitor of 100 Omega reactance are conn...

    Text Solution

    |

  17. In an electromagnetic wave in free space the root mean square value of...

    Text Solution

    |

  18. An em wave is propagating in a medium whith a velocity vecv=vhati. The...

    Text Solution

    |