Home
Class 12
PHYSICS
A modulating signal is a square wave as ...

A modulating signal is a square wave as shown in the figure

The carrier wave is given by.
`c(t)=1.33sin(8pit)"volts"`
The modulation index is

A

`2`

B

`0.75`

C

`0.5`

D

`1.5`

Text Solution

Verified by Experts

The correct Answer is:
B
`m=(A_(m))/(A_(c))`
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-I(H.W)|11 Videos

  • CAPACITANCE

    NARAYNA|Exercise Previous IIT-JEE|16 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

Similar Questions

Explore conceptually related problems

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

A modulating signal is a square wave is shown in figure. The carrier wave is given by C(t) = 2 sin (8 pi t) volt. (i) Sketch the amplitude modulated wave form. (ii) What is the modulating index?

A modulating signal is a square wave as shown in the following figure. While the carrier wave is given by, e = 4 sin (87 pi t) volt. What is the modulation index ?

A modulating signal is a square wave as shown in the following figure . While the carries wave is given by e=4 sin (8 pi t) volt . What is the modulation index ?

An amplitude modulated wave is as shown in the figure. What is the percentage of modulation ?

An amplitude modulated wave is as shown in figure . Then , the modulation index will be

Why is the amplitude of modulating signal kept less than the amplitude of carrier wave ?

The carrier wave is represented by C(t) = 5 sin (10 pi t) volt A modulating signal is a square wave as shown in figure. Determine modulation index.

Assertion : Higher the modulation index the reception will be strong and clear. Reason : The degree, to which the carrier wave is modulated is called modulation index.

A wave is represented as e=10 sin (10^(8)t+6 sin 1250t) then the modulating index is

NARAYNA-COMMUNICATION SYSTEM-Level-II(H.W)
  1. The TV signals have a band width of 4MHz.The number of TV channels tha...

    Text Solution

    |

  2. A carrier wave of peak voltage 10 V is used to transmit a message sign...

    Text Solution

    |

  3. A modulating signal is a square wave as shown in the figure The c...

    Text Solution

    |

  4. A audio signal 20sin2pi(1500t) amplitude modulates 40sin2pi(10^(5))t. ...

    Text Solution

    |

  5. An AM wave is given by V=1500[1+0.5sin62800t]sin(5.26xx10^(5)t). T...

    Text Solution

    |

  6. The amplitude modulated current is given by i=75[1+0.3sin2003t]sin(7...

    Text Solution

    |

  7. An audio signal 5sin2pi(1600t) amplitude modulates 20sin2pi(10^(5)t). ...

    Text Solution

    |

  8. If 2f(c) and 3f(m) are the frequencies of carrier wave and signal, the...

    Text Solution

    |

  9. The number of AM broadcast stations that can be accomodated in a 140kH...

    Text Solution

    |

  10. A 2000 kHz carrier is simultaneously modulated with 600Hz, 800Hz and 4...

    Text Solution

    |

  11. If a carrier wave of amplitude 20mV is modulated by an audio signal of...

    Text Solution

    |

  12. The amplitude modulated current is given by i=70[1+0.06sin2900t]sin10^...

    Text Solution

    |

  13. If minimum voltage in an AM wave was found to be 1.1 V and maximum vol...

    Text Solution

    |

  14. Sinusoidal carrier voltage of frequency 3 MHz and amplitude 50V is amp...

    Text Solution

    |

  15. A transmitter supplies 6 kW to the aerial when unmodulated. The power ...

    Text Solution

    |

  16. The total power content of an AM wave is 6000 W. For 100% modulation, ...

    Text Solution

    |

  17. The bit rate for a signal, which has a sampling rate of 8 kHz and wher...

    Text Solution

    |

  18. The antenna current of an AM transmitter is 10 A when only carrier is ...

    Text Solution

    |

  19. In a diode AM- dectector, the output circuit consist of R=1 kOmega and...

    Text Solution

    |

  20. In an FM system a 9 kHz signal modulates 108 MHz carrier so that frequ...

    Text Solution

    |