Home
Class 12
PHYSICS
A plane electromagnetic wave in a non-ma...

A plane electromagnetic wave in a non-magnetic dielectric medium is given by `vecE = vecE_(0)(4 xx 10^(-7) x - 50 t)` with distance being in meter and time in seconds. The dielectric constant of the medium is :

A

2.4

B

5.8

C

8.2

D

4.8

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 2 : Electromagnetic Spectrum)|22 Videos
  • ELECTROMAGNETIC INDUCTION

    DISHA PUBLICATION|Exercise EXERCISE - 2 : Concept Applicator|29 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    DISHA PUBLICATION|Exercise EXERCISE 2: CONCEPT APPLICATOR|24 Videos

Similar Questions

Explore conceptually related problems

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

Electri field of a plane electromagnetic wave propagating through a non - magnetic medium is given by E = 20 cos (2 xx 10^10t - 200x) V//m . The dielectric constant of the medium is equal to : (Take mu_r =- 1 )

Electri field of a plane electromagnetic wave propagating through a non - magnetic medium is given by E = 20 cos (2 xx 10^10t - 200x) V//m . The dielectric constant of the medium is equal to : (Take mu_r =1 )

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

The particles displacement in a wave is given by y = 0.2 xx 10^(-5) cos (500 t - 0.025 x) where the distances are measured in meters and time in seconds. Now

The particles displacement in a wave is given by y = 0.2 xx 10^(-5) cos (500 t - 0.025 x) where the distances are measured in meters and time in seconds. Now

An electromagnetic wave of v=3 MHz passes from vacuum into dielectric medium with epsi= 4 epsi_0 . then

The magnetic field in plane electromagnetic wave is given by B= 3.01 xx 10^(-7) sin (6.28 xx 10^(2)x + 2.2 xx 10^(10) t) I. [ where x in cm and t in second] The wavelength of the given wave is

Electromagnetic wave in a medium of mu_(r) = 1 is given as E = 20 sin (20 x 10^10 - 20 x 10^2 x) . Dielectric constant of medium is 1/x then find x

The magnetic field in a plane electromagnetic wave is given by B_(y) = 2 xx 10^(-7) sin (0.5 xx 10^(3)x + 1.5 xx 10^(11) t) . This electromagnetic wave is

DISHA PUBLICATION-ELECTROMAGNETIC WAVES-Exercise - 2 : Concept Applicator
  1. The charge on a parallel plate capacitor varies as q = q(0) "cos" 2 pi...

    Text Solution

    |

  2. When an electromagnetic wave enters the ionised layer of ionosphere,...

    Text Solution

    |

  3. A plane electromagnetic wave in a non-magnetic dielectric medium is gi...

    Text Solution

    |

  4. The magnetic component of a polarised wave of light is [B(x)=(4.0xx10^...

    Text Solution

    |

  5. The sunlight reaching the earth has maximum electric field of 810V (m^...

    Text Solution

    |

  6. In which one of the following regions of the electromagnetic spectrum ...

    Text Solution

    |

  7. Match List I (Wavelength range of electromagnetic spectrum) with List ...

    Text Solution

    |

  8. A point source of electromagnetic radiation has an average power outpu...

    Text Solution

    |

  9. A lamp emits monochromatic green light uniformly in all directions. Th...

    Text Solution

    |

  10. In a plane electromagnetic wave propagating in space has an electric f...

    Text Solution

    |

  11. If epsi(0) and mu(0) are respectively, the electric permittivity and t...

    Text Solution

    |

  12. A wave is propagating in a medium of electric dielectric constant 2 ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  17. A point source of electromagnetic radiation has an average power outpu...

    Text Solution

    |

  18. An electromagnetic wave with frequency omega and wavelength lambda tra...

    Text Solution

    |

  19. The pressure exerted by an electromagnetic wave of intensity l ("watt/...

    Text Solution

    |

  20. Find the energy contained in a cyllinder of cross - section 10cm^(2) a...

    Text Solution

    |