Home
Class 12
PHYSICS
In case of linearly polarised light, the...

In case of linearly polarised light, the magnitude of the electric field vector

A

does not change with time

B

varies periodically with time

C

is parallel to the direction of propagation

D

increases and decreases linearly with time

Text Solution

Verified by Experts

The correct Answer is:
B

The magnitude of electric field vector varies periodically with time because it is in the form of electromagnetic wave.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    DC PANDEY|Exercise Match the columns|2 Videos
  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrances gallery|25 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITORS

    DC PANDEY|Exercise (C) Chapter exercises|50 Videos

Similar Questions

Explore conceptually related problems

Unpolarised light consists of electric field vectors in

Write down the Electric field in vector form ?

A : In an EM wave the magnitude of the electric field vector is more than the magnitude of the magnetic field vector. R : Energy of the EM wave is shared equally between the electric and magnetic fields.

What is meant by polarised light ?

a proton placed in an electric field would experience an electrical force equal to its weight. the magnitude of electric field intensity E would be

In the following graph , the magnitude of maximum electric field is

What is elliptically polarised light ?

Assertion: If we see along the axis of a chaged ring, the magnitudeof electric field is minimum at centre and magnitude of electridc potential is maximum. Reason: Electric field is a vector quantity while electric potential is scalar.

DC PANDEY-ELECTROMAGNETIC WAVES-Sec C
  1. The electric vector vibration of an electromagnetic wave is given by E...

    Text Solution

    |

  2. Which radiations are used in treatment of muscles ache?

    Text Solution

    |

  3. In case of linearly polarised light, the magnitude of the electric fie...

    Text Solution

    |

  4. A leaf which contains only green pigments, is illuminated by a laser l...

    Text Solution

    |

  5. The ratio of amplitude of magnetic field to the amplitude of electric ...

    Text Solution

    |

  6. In electromagnetic wave , according to Maxwell , changing electric fie...

    Text Solution

    |

  7. The speed of light in an isotropic medium depends on

    Text Solution

    |

  8. The energy of gamma (gamma) ray photon is E(gamma) and that of an X-ra...

    Text Solution

    |

  9. The speed of electmagnetic waves in vacuum is equal to

    Text Solution

    |

  10. A plane electromagnetic wave of frequency 20 MHz travels through a spa...

    Text Solution

    |

  11. In electromagnetic spectrum, the frequencies of gamma-rays and X-rays ...

    Text Solution

    |

  12. The electromagnetic waves detected using a thermopile and used in phys...

    Text Solution

    |

  13. The wavelength of X-rays is in the range

    Text Solution

    |

  14. The wavelength of the short radio waves, microwaves, ultraviolet waves...

    Text Solution

    |

  15. The transverse nature of electromagnetic waves is proved by which of t...

    Text Solution

    |

  16. Which component of electromagnetic spectrum have maximum wavelength?

    Text Solution

    |

  17. The condition under which a microwave oven heats up a food item contai...

    Text Solution

    |

  18. If c is the velocity of light in free space, the time taken by light t...

    Text Solution

    |

  19. The electric field associated with an electromagnetic wave in vacuum i...

    Text Solution

    |

  20. The wave function (in SI unit) for a light wave is given as Psi(x,t) =...

    Text Solution

    |