Home
Class 12
PHYSICS
The velocity of electromagnetic radiatio...

The velocity of electromagnetic radiation in a medium of permittivity `epsilon_(0)` and permeability `mu_(0)` is given by:

A

`sqrt(mu//E)`

B

`sqrt(muepsi)`

C

`1//sqrt(muepsi)`

D

`sqrt(epsi//mu)`

Text Solution

Verified by Experts

The correct Answer is:
C

For a medium with permittivity `epsi` and permeability `mu`, velocity of light is given by
`c = (1)/(sqrt(muepsi))`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    DC PANDEY ENGLISH|Exercise Sec B|5 Videos
  • ELECTROMAGNETIC WAVES

    DC PANDEY ENGLISH|Exercise Match the columns|2 Videos
  • ELECTROMAGNETIC WAVES

    DC PANDEY ENGLISH|Exercise Check point 8.2|15 Videos
  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|25 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY ENGLISH|Exercise (C) Chapter exercises|50 Videos

Similar Questions

Explore conceptually related problems

On an energy level diagram of hydrogen, show by a downward or an upward arrow, a transition which results in : (i) emission line of Balmer series. (ii) emission line of Lyman series. (iii) absorption line of Lyman series. (b) (i) Define unified atomic mass unit . (ii) Write the expression for speed of electromagnetic waves in a medium of electrical permittivity epsilon and magnetic permeability mu .

The velocity of electromagnetic waves in a dielectric medium (in_(r)=4) is

Express velocity of electromagnetic wave in a material medium in terms of mu and epsi .

In terms of potential difference V , electric current I , permittivity epsilon_(0) , permeability mu_(0) and speed of light c , the dimensionally correct equation (s) is (are)

The unit of permittivity of free space epsilon_(0) is:

The unit of permittivity in free space epsilon_(0) is:

The speed of an electromagnetic wave in a material medium is given by n=(1)/(sqrt(mu epsilon)), m being the permeability of the medium and e its permittivity. How does its frequency change ?

Dimension of resistance R in terms of mu0 & epsilon_(0) are

Assertion : The velocity of electromagnetic waves depends on electric and magnetic properties of the medium Reason : Velocity of electromagnetic waves in free space is constant.

The maximum wavelength of electromagnetic radiation, which can create a hole-electron pair in germanium. (Given that forbidden energy gap in germanium is 0.72 eV)

DC PANDEY ENGLISH-ELECTROMAGNETIC WAVES-Sec A
  1. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |

  2. Consider the following statement regarding a beam of LASER. (I) It i...

    Text Solution

    |

  3. The velocity of electromagnetic radiation in a medium of permittivity ...

    Text Solution

    |

  4. The speed of electromagnetic wave in vacuum depends upon the source of...

    Text Solution

    |

  5. The velocity of electromagnetic waves in free space can be given by re...

    Text Solution

    |

  6. Which one of the following is the property of a monochromatic, plane e...

    Text Solution

    |

  7. Which physical quantiy is same for x-rays and gamma -rays in vacum ?

    Text Solution

    |

  8. An EM radiates outwards from a dipole antenna, with E(0) as the amplit...

    Text Solution

    |

  9. The sum delilvers 10^(4) W//m^(2) of electromagnetic flux to earth's s...

    Text Solution

    |

  10. If E and B represent electric and magnetic field vectors of the electr...

    Text Solution

    |

  11. IF E(0) and mu(0) are respectively the electric permittivity and magne...

    Text Solution

    |

  12. Which is the correct expression of velocity of light?

    Text Solution

    |

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

    Text Solution

    |

  14. The average electric field of electromagnetic waves in certain region ...

    Text Solution

    |

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

    Text Solution

    |

  16. The magnetic field amplitude of an electromagnetic wave is 2 xx 10^(-7...

    Text Solution

    |

  17. A parallel plate capacitor is charged to 60 muC. Due to a radioactive ...

    Text Solution

    |

  18. The pressure exerted by an electromagnetic wave of intensity I (Wm^(-2...

    Text Solution

    |

  19. An L-c resonant circuit contains a 200 pF capacitor and a 200muH induc...

    Text Solution

    |

  20. Radiation of intensity 1 W//m^(2) are striking on a metal plate. The p...

    Text Solution

    |