Home
Class 12
PHYSICS
Two waves A and B of frequencies 2MHz an...

Two waves A and B of frequencies 2MHz and 3MHz, respectively are beamed in the same direction for communication via sky wave. Which one of these is likely to travel longer distance in the ionosphere before suffering total internal reflection?

A

A travels longer distance

B

B travels longer distance

C

both A & B travels same distance

D

A & B cannot suffer T.I.R

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Space Communication)|35 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Line Communication)|10 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise Exercise - IA (Modulation)|23 Videos

  • COMMUNICATION SYSTEM

    AAKASH SERIES|Exercise LECTURE SHEET (LEVEL - I) (MAIN) (EXERCISE - IV) (Straight Objective & More than one Correct Answer Type Questions)|20 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|27 Videos

Similar Questions

Explore conceptually related problems

Three waves A,B and C of frequencies 1500 KHz. 6MHz and 50 MHz respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communciation?

Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another.Which of the following is the appropriate mode of communication?

Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another.Which of the following is the appropriate mode of communication?

Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another.Which of the following is the appropriate mode of communication?

Three waves A,B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another.Which of the following is the appropriate mode of communication?

Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 cm, are travelling in the same direction on a string. What is the phase difference between the waves (a) if the second wave was produced 0.015 s later than the first one at the same place, (b) if the two waves were produced at the same instant but the first one was produced a distance 4.0 cm behind the second one ? (c) If each of the waves has an amplitude of 2.0 mm, what would be the amplitudes of the resultant waves in part (a) and (b) ?

Two wave pulses travel in opposite directions on a string and approch each other. The shape of the one pulse is same with respect to the other

Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 cm, are travelling in the same direction on a string. What is the phase difference between the waves if the second wave was produced 0.015 s later than the first one at the same place,

Two sinusoidal wave having the same frequency and travelling in the same direction are combined. What is the amplitude of the resultant motion if their amplitudes are 3cm and 4cm and they differ in phase by pi//2 radian?

Two strings, A and B , of lengths 4L and L respectively and same mass M each, are tied together to form a knot 'O' and stretched under the same tension. A transverse wave puise is sent along the composite string from the side A , as shown to the right. Which of the following diagrams correctly shows the reflected and transmitted waves pulses near the knot 'O' ?

AAKASH SERIES-COMMUNICATION SYSTEMS -Exercise - IA (Sky Wave propagation)
  1. When a sound wave is reflected from a wall, the phase difference betwe...

    Text Solution

    |

  2. Find the ratio of 3 km to 300 m

    Text Solution

    |

  3. The frequency band used in the downlink of satellite communication is

    Text Solution

    |

  4. Ground wave have wavelength

    Text Solution

    |

  5. In sky wave mode of propagation, why is the frequency rangy of tranmit...

    Text Solution

    |

  6. PCT is responsible for

    Text Solution

    |

  7. Explain the following: Aniline is less basic than ammonia.

    Text Solution

    |

  8. With increases of ionic density, the R.I, of ionosphere

    Text Solution

    |

  9. The frequency of amplitude modulated wave is equal to

    Text Solution

    |

  10. The highest frequency of transmitted wave that is returned to the eart...

    Text Solution

    |

  11. Explain the principle and working of a cyclotron with the help of a sc...

    Text Solution

    |

  12. Two waves A and B of frequencies 2MHz and 3MHz, respectively are beame...

    Text Solution

    |

  13. Electromagnetic waves with frequencies greater than the critical frequ...

    Text Solution

    |

  14. The skip zone in radio wave trasmission is that range where

    Text Solution

    |

  15. Ozone layer above earth's atmosphere will not

    Text Solution

    |

  16. A wave has velocity u In medium P and velocity 2u in medium Q. If the ...

    Text Solution

    |

  17. A gene is said to be dominant if

    Text Solution

    |

  18. Refractive index of lonosphere is

    Text Solution

    |

  19. Three waves A,B and C of frequencies 1600 KHz, 5MHz and 60 MHz, respec...

    Text Solution

    |

  20. Which of the following frequency will be suitable for beyond the horiz...

    Text Solution

    |