Does the light from my flashlight travel into space?

Question

Does this answer your question? If I point a torch up, would the photons hit anything? Also related: https://physics.stackexchange.com/q/243565/243965 — Rishi, Apr 12 '23 at 16:20

score 1 · Answer 1 · answered Apr 12 '23 at 15:04

1

The answer to this question is 'yes'. But if we talk about the reality, then most of the light will be scattered and absorbed,reflected by the particles in atmosphere.

answered Apr 12 '23 at 15:04

ayu

63

About two-thirds of the sun's radiation reaches the ground on a clear day. For an LED flashlight the inverse path is probably even more efficient since the spectrum falls within the transparent atmospheric windows. – FlatterMann Apr 12 '23 at 16:33

Physics · Answer 2 · 2023-04-12T17:17:23.733

0

Yes. Its intensity will become lesser and lesser. You can learn more interesting light concepts [here].1

edited Apr 12 '23 at 17:17

answered Apr 12 '23 at 17:15

Physics

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Does the light from my flashlight travel into space?

2 Answers2