Home
Class 12
PHYSICS
The intensity of TV broad cast station o...

The intensity of `TV` broad cast station of `E=800sin(10^(9)t-kx) V//M` is…….and the wave length in meter is…….

A

850 W`m^(-2)` , 0.6 `pi`

B

`425 W m^(-2) , 0.6 pi`

C

`850 W m^(-2) , 0.3 pi`

D

`425 W m^(-2) , 0.3 pi`

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda = (c)/(n) = c ((2pi )/(omega)) , I = (E_(0) B_(0))/(2 mu_(0)) = (E_(0)^(2))/(2 mu_(0)C)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -2(C.W)|20 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -2 ( H.W) DISPLACEMENT CURRENT|14 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -1(C.W)|32 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise ASSERTION & REASON|6 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NARAYNA|Exercise ADDITIONAL PROBLEMS|14 Videos

Similar Questions

Explore conceptually related problems

Calculate intensity of EM wave given by:- E=200sin(1.5times10^(-7)x-t)

The frequency of transmission of a radio station is 30 MHz. Then the wavelengt of the waves transmitted by the centre will be (v = 3 xx 10^(8) m//s)

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

A transverse wave travelling on a taut string is represented by: Y=0.01 sin 2 pi(10t-x) Y and x are in meters and t in seconds. Then,

A wave is represented by the equation y=0.5 sin (10 t-x)m . It is a travelling wave propagating along the + x direction with velocity

The electric field on an electromagnetic wave in free space is given by E=10 cos (10^7t+kx) hatj V//m , Where t and x are in seconds and metres respectively. It can be inferred that (1) the wavelength lambda is 188.4m. (2) the wave number k is 0.33rad//m (3) the wave amplitude is 10V//m (4) the wave is propagating along +x direction. which one of the following pairs of statement is correct?

The electric field in an electromahetic wave is given by E = 100sin omega (t-x//c) . Find the energy contained in a cylinder of crross section 20cm^(2) and length 1 m along the x -axis. Also find intensity of wave.

The equation of progressive wave is y=0.01sin(100t-x) where x,y are in meter and t in second, then (a) Velocity of wave is 50m//s (b) Maximum velocity of particle is 1m//s (c ) Wave length of wave is 2pi meter

NARAYNA-ELECTROMAGNETIC WAVES -EXERCISE -1(H.W)
  1. The voltage between the plates of a parallel plate condenser of capaci...

    Text Solution

    |

  2. A parallel plate condenser of capacity 10 muF is charged with a consta...

    Text Solution

    |

  3. A parallel plate capacitor of plate separation 2 mm is connected in an...

    Text Solution

    |

  4. The graph representing the variation of induced magnetic field in the ...

    Text Solution

    |

  5. The electrical field in the gap of a condenser charges as 10^(12)Vm^(-...

    Text Solution

    |

  6. An LC current contains inductance L=1mu H and capacitance C=0.01 muF. ...

    Text Solution

    |

  7. The wave length of the Green light of mercury is 550 nm. If the refrac...

    Text Solution

    |

  8. The all India Radio, station at Vijayawada transmits its signals at 84...

    Text Solution

    |

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

    Text Solution

    |

  10. A plane E.M. wave of frequency 40 MHz travels along X-axis. At same po...

    Text Solution

    |

  11. A plane electromagnetic wave of frequency 25 Mhz travels in free space...

    Text Solution

    |

  12. An electruc field of 300V//m is confined to a circular area 10 cm in d...

    Text Solution

    |

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

    Text Solution

    |

  14. Light with energy flux 36w//cm^(2) is incident on a well polished meta...

    Text Solution

    |

  15. The rms value of the electric field of the light from the sun is 720 N...

    Text Solution

    |

  16. In an electromagnetic wave, the amplitude of electric firld is 1 V/m. ...

    Text Solution

    |

  17. About 5% of the power of a 100W bulb is converted to visible radiation...

    Text Solution

    |

  18. The sun radiates electromagnetic energy at the rate of 3.9xx10^(26)W. ...

    Text Solution

    |

  19. The intensity of TV broad cast station of E=800sin(10^(9)t-kx) V//M is...

    Text Solution

    |

  20. v22

    Text Solution

    |