Home
Class 12
PHYSICS
The average energy-density of electromag...

The average energy-density of electromagnetic wave given by `E=(50N//C) sin (omegat-kx)` will be nearly:

A

`10^(-8) J//m^(3)`

B

`10^(-7) J//m^(3)`

C

`10^(-6) J//m^(3)`

D

`10^(-5) J//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (More than One Correct Choice Type )|4 Videos
  • ELECTROMAGNETIC WAVES

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Linked Comprehension)|2 Videos
  • ELECTROMAGNETIC WAVES

    RESNICK AND HALLIDAY|Exercise PROBLEMS|29 Videos
  • ELECTROMAGNETIC OSCILLATIONS AND ALTERNATING CURRENT

    RESNICK AND HALLIDAY|Exercise Practice Questions (Integer)|7 Videos
  • FLUIDS

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type )|5 Videos

Similar Questions

Explore conceptually related problems

The electric field in an electromagnetic wave is given by E=(50N/C)sin(omega t-kx) .The energy contained in a cylinder of cross section 1m^(2) and length 25cm along the x axis is nearly

The electric field in an electromagnetic wave is given by E( 50N (C^-1)) sin omega (t-x/c). Find the energy contained in a cylinder of cross section 10 cm^2 and length 50 cm along the x- axis.

The electric vector vibration of an electromagnetic wave is given by E = (50NC^(-1)) sin omega(t-(x)/(c)) , The intensity of the wave is

The electric field of an electromagnetic wave is given by E = (50 N C ^(-1)) sin omega (t - x//c). The energy contained in a cylinder of cross section 10 cm ^(2) and length l /10 along the x-axis is 5.5 xx 10 ^(-12)J. The vlaue of l is

Total energy of density of electromagnetic waves in vacuum is given by the relation

The averaGE value of electric energy density in an electromagnetic wave is ( E_(0) is peak value):

RESNICK AND HALLIDAY-ELECTROMAGNETIC WAVES -PRACTICE QUESTIONS (Single Correct Choice Type )
  1. A beam of light of intensity 12 W/cm^(2) in incident on a totally refl...

    Text Solution

    |

  2. A plane electromagnetic wave of wave intensity 6 W//m^(2) strikes a sm...

    Text Solution

    |

  3. The average energy-density of electromagnetic wave given by E=(50N//C)...

    Text Solution

    |

  4. The magnetic field in the plane electromagnetic wave is given by B(z...

    Text Solution

    |

  5. Select the correct statement :

    Text Solution

    |

  6. The order of increasing wavelength for blue (b) green ( g) red (r ) a...

    Text Solution

    |

  7. Of the following human eyes are most sensitive to

    Text Solution

    |

  8. If the wavelength of an electromagnetic wave is about the diameter of ...

    Text Solution

    |

  9. Which of the following types of electromagnetic radiation travels at t...

    Text Solution

    |

  10. An electromagnetic wave is generated by

    Text Solution

    |

  11. Which of these statements correctly describes the orientation of the e...

    Text Solution

    |

  12. An electromagnetic wave going through vacuum is described by E= E0 s...

    Text Solution

    |

  13. A free electrons is placed in the path of a plane electromagnetic wave...

    Text Solution

    |

  14. A beam of light travelling along x-axis is described by the electric f...

    Text Solution

    |

  15. A plane electromagnetic wave travels in free space along x-axis. At a ...

    Text Solution

    |

  16. A plane e.m. wave travelling along the x-direction has a wavelength of...

    Text Solution

    |

  17. An electromagnetic wave is traveling in the positive x direction with ...

    Text Solution

    |

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

    Text Solution

    |

  19. A plane electromagnetic wave E(z) = 100 "cos" (6xx10^(8)t +4x) V/m pro...

    Text Solution

    |

  20. The dimensions of S = (1//mu(0)) vecExxvecB are

    Text Solution

    |