Home
Class 12
PHYSICS
The electromagnetic waves detected using...

The electromagnetic waves detected using a thermopile and used in physical therapy are

A

gamma radiations

B

X-rays

C

ultraviolet radiations

D

infrared radiations

Text Solution

Verified by Experts

The correct Answer is:
D
The electromagnetic waves detected using a thermopile and used in physical therapy are infrared radiation for treating muscular strain.
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

Thermopile is used for

A : High frequency electromagnetic waves are detected by some means based on physical effects they produce on interacting with matter. R : The oscillating fields of an electromagnetic wave can accelerate charges and can produce oscillating currents therefore, an apparatus designed to detect EM waves is based on this fact.

The electromagnetic waves used in the telecommunication are

Hertz produced electromagnetic wave by using

The electromagnetic waves of frequency range 100 to 300 Hz are used in

Electromagnets are used in

What is the use of a thermopile ?

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

    |