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About torch light traveling

  1. Jul 6, 2015 #1
    Why we do not see a touch light from a distance of 1 km.
    thanks
    nilesh
     
  2. jcsd
  3. Jul 6, 2015 #2

    Vanadium 50

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    Staff Emeritus
    Science Advisor
    Education Advisor

    Touch light? Trouch light? I don't understand what you are talking about.

    If you mean "torch light", as in "flashlight", the answer is "we do".
     
  4. Jul 6, 2015 #3
    Sorry,
    yes sir, torch light as "flashlight" . how far it could travel ?.

    With regards
    nilesh
     
  5. Jul 6, 2015 #4

    Drakkith

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    Staff: Mentor

    The light travels until it is absorbed by something. At great distances the light has either spread out so much or enough has been absorbed that the intensity is too low to detect it with your eyes.
     
  6. Jul 7, 2015 #5
    Thank you.
     
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