Home
Class 12
PHYSICS
The velocity of all radiowaves in free s...

The velocity of all radiowaves in free space is `3xx10^(8),//s`, the frequency of a wave of wavelength `150 m` is

A

`45 MHz`

B

`2 MHz`

C

`2 KHz`

D

`20 KHz`

Text Solution

Verified by Experts

The correct Answer is:
B
`C=nlambda`
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL- II (C.W.)|15 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL- III|10 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise C.U.Q|31 Videos

  • ELECTRO MAGNETIC INDUCTION

    NARAYNA|Exercise Level-II (H.W)|23 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise ASSERTION & REASON|6 Videos

Similar Questions

Explore conceptually related problems

The velocity of electromagnetic waves in free space is 3xx10^(8) m/s. Whal is the frequency (in MHz) of the wavelength of vaJue 150 m?

If velocity of radio waves is 3 xx 10^8 m/s, the frequency corresponding to wavelength of 300 m is

If velocity of radio waves is 3 xx 10^8 m/s, the frequency corresponding to wavelength of 300 m is

If the velocity of light in free space is 3xx10^(8) m/s , then value of wavelength of electromagnetic wave of frequency 2xx10^(6) Hz will be

As the e.m waves travel in free spaces

The frequency of radio waves corresponding to a wavelength of 10 m is

Time period of a wave is 5xx10^(-3)s, what is the frequency?

If wavelength of an electromagnetic waves in free space is 0.075m, find its frequency.

A star is moving away from the earth with a velocity of 100 km//s . If the velocity of light is 3 xx 10^(8) m//s then the shift of its spectral line of wavelength 5700 A due to Doppler effect is

NARAYNA-ELECTRO MAGNETIC WAVES-LEVEL -I(C.W.)
  1. A parallel plate capacitor of plate separation 2 mm is connected in an...

    Text Solution

    |

  2. The magnetic field between the plates of a capacitor when r gt R is gi...

    Text Solution

    |

  3. A condenser is charged using a constant current. The ratio of the magn...

    Text Solution

    |

  4. The magnetic field between the circulate plates of radius 12cm separte...

    Text Solution

    |

  5. The wave function (in S.I unit) for an electromagnetic wave is given a...

    Text Solution

    |

  6. The velocity of all radiowaves in free space is 3xx10^(8),//s, the fre...

    Text Solution

    |

  7. The relative permeability of glass is 3//8 and the dielectric constant...

    Text Solution

    |

  8. An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into...

    Text Solution

    |

  9. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |

  10. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |

  11. In an apparatus the electric field was found to oscillate with an ampl...

    Text Solution

    |

  12. The amplitude of the sinusodially oscillating electric field of a plan...

    Text Solution

    |

  13. Light with energy flux of 18W//cm^(2) falls on a non reflecting surfac...

    Text Solution

    |

  14. Light with energy flux of 24Wm^(-2) is incident on a well polished dis...

    Text Solution

    |

  15. The maximum electric field of a plane electromagnetic wave is 88V//m. ...

    Text Solution

    |

  16. The rms value of electric field of a plane electromagnetic wave is 314...

    Text Solution

    |

  17. The magnetic of poynting vector and electric field vector are respecti...

    Text Solution

    |

  18. If the source of power 4 kW product10^(20) photons //second , the radi...

    Text Solution

    |

  19. The intensity of electromagnetic wave at a distance of 1 Km from a sou...

    Text Solution

    |

  20. The sun delivers 10^3W//m^2 of electromagnetic flux to the earth's sur...

    Text Solution

    |