Home
Class 12
PHYSICS
Sodium lamps are used in foggy condition...

Sodium lamps are used in foggy conditions because

A

Yellow light is scattered less by fog particles

B

Yellow light is scattered more by fog particles

C

yellow light is unaffected by fog

D

Wavelength of yellow light is mean of visible part of spectrum .

Text Solution

Verified by Experts

The correct Answer is:
A
Yellow light is scattered less by fog particles and yellow light and green light are more sensitive for human eyes.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    MODERN PUBLICATION|Exercise COMPETITION FILE - OBJECTIVE TYPE QUESTIONS ( MULTIPLE CHOICE QUESTIONS )(C )|5 Videos

  • ELECTROMAGNETIC WAVES

    MODERN PUBLICATION|Exercise COMPETITION FILE - OBJECTIVE TYPE QUESTIONS ( MULTIPLE CHOICE QUESTIONS )(D )|4 Videos

  • ELECTROMAGNETIC WAVES

    MODERN PUBLICATION|Exercise COMPETITION FILE -OBJECTIVE TYPE QUESTIONS ( MULTIPLE CHOICE QUESTIONS )(A )|20 Videos

  • ELECTROMAGNETIC INDUCTION

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|14 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    MODERN PUBLICATION|Exercise Chapter Practice Test|9 Videos

Similar Questions

Explore conceptually related problems

Soaps cannot be used in acidic condition because they lose their cleansing effect due to formation of insoluble

Why are sodium lamps used for illumination if foggy conditions ?

Sodium thiosulphate is used in photography because of its:

The archaebacteria are resistant to adverse condition because of the presence of :

What is the name given to the part of electromagnetic spectrum which is used for taking photographs of earth under foggy conditions from great heights ?

Conifers are adapted to tolerate extreme environmental conditions because of

MODERN PUBLICATION-ELECTROMAGNETIC WAVES-COMPETITION FILE - OBJECTIVE TYPE QUESTIONS ( MULTIPLE CHOICE QUESTIONS )(B )
  1. The velocity of electromagnetic wave is parallel to

    Text Solution

    |

  2. Which of the following has minimum wavelenght?

    Text Solution

    |

  3. Sodium lamps are used in foggy conditions because

    Text Solution

    |

  4. Due to the earth's magnetic field, charged cosmic ray particles

    Text Solution

    |

  5. If there were no atmosphere, Earth would have been

    Text Solution

    |

  6. A parallel plate capacitor of capacitance 20 mu F is being charged by ...

    Text Solution

    |

  7. According to Maxwell's hypothesis, a changing electrio field gives ris...

    Text Solution

    |

  8. Radio frequency choke uses core of

    Text Solution

    |

  9. lamdav , lamdax , lamdam represent wave lengths of visible light, X-ra...

    Text Solution

    |

  10. The pressure exerted by electromagnetic wave of intensity I on ...

    Text Solution

    |

  11. The electric and magnetic field of an electromagnetic wave are:

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly r...

    Text Solution

    |

  15. A radiation of energy 'E'falls normally on a perfectly reflecting surf...

    Text Solution

    |

  16. Which of the following electromagnetic waves has highest wavelength?

    Text Solution

    |

  17. Out of the following options which one can be used to produce a propag...

    Text Solution

    |

  18. In an electromagnetic wave in free space the root mean square value of...

    Text Solution

    |

  19. The magnetic field of an electromagnetic wave is given by: oversetB=...

    Text Solution

    |

  20. The magnetic field of a plane electromagnetic wave is given by: vec(B)...

    Text Solution

    |