Home
Class 12
PHYSICS
As the e.m waves travel in free spaces...

As the `e.m` waves travel in free spaces

A

absorption takes place

B

attennuation takes place

C

refraction take place

D

reflection takes place

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-I(C.W)|16 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(C.W)|34 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • CAPACITANCE

    NARAYNA|Exercise Previous IIT-JEE|16 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

Similar Questions

Explore conceptually related problems

The magnetic field amplitude of an electromagnetic wave is 2 xx 10^(-7)T . Its' electirc field amplitude if the wave is traveling in free space is

The electromagnetic waves travel in free space with the velocity of

A plane electromagnetic wave travels in free space along x-axis. At a particular point in space, the electric field along y-axis is 9.3 V m^(–1) . The magnetic induction (B) along z-axis is

How does the relation c-frac(1)(sqrt(mu_0 epsilon_0) indicate that the velocity of all types of e.m. waves in free space is the same?

A plane electromagnetic wave travels in free space along X-direction. If the value of vecB (in tesla) at a particular point in space and time is 1.2 xx 10^(-8) hatk . The value of vecE (in Vm^(-1) ) at that point is

For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric (mu_(e)) and magnetic (mu_(m)) fields is:

The wave impedance of free space is

NARAYNA-COMMUNICATION SYSTEM-C.U.Q
  1. The intensity of the ground waves decrease with increase of distance d...

    Text Solution

    |

  2. High frequency waves are

    Text Solution

    |

  3. As the e.m waves travel in free spaces

    Text Solution

    |

  4. The electromagnetic waves of frequency 80 MHz and 200 MHz

    Text Solution

    |

  5. The better propagation mode to propagate television frequency and rada...

    Text Solution

    |

  6. Micro wave link repeaters are typically 50 km apart

    Text Solution

    |

  7. Attenuation of ground waves is due to (1) Diffraction effect (2) R...

    Text Solution

    |

  8. The ground wave eventually disappears, as one moves away from the tran...

    Text Solution

    |

  9. The range of ground wave transmission can be increased by

    Text Solution

    |

  10. Space wave propagation is used in (a) microwave communication (b) ...

    Text Solution

    |

  11. Frequencies in the UHF range normally propagate by means of:

    Text Solution

    |

  12. When a sky wave is reflected onto the ground

    Text Solution

    |

  13. The electromagnetic waves of frequency 2 MHz and 30 MHz are

    Text Solution

    |

  14. Among the follwing frequencies one will be suitable for beyond-the hor...

    Text Solution

    |

  15. Among the follwing , the waves which can penetrate the ionosphere are

    Text Solution

    |

  16. A: At great heights from surface of earth and close to earth ionisatio...

    Text Solution

    |

  17. Through which mode of propagation, the radio waves can be sent from on...

    Text Solution

    |

  18. The frequency at which communication will not be reliable is

    Text Solution

    |

  19. The frequency above which radiation of electrical energy is practical ...

    Text Solution

    |

  20. The ratio waves of frequency 300 MHz to 3000 MHz belong to

    Text Solution

    |