The light from the sun will stop traveling after a particular distance due to its intensity becoming 0.
Up to which planet does the light from the sun travel before which it dissipates into nothing?
If light ceases to exist after a particular distance, How are we able to use telescopes to see objects further than that?
By objects I mean the objects like planets or other bodies that don't emit light on its own.
I'm sorry if my question is trivial, I'm not a physics grad or anything.
Thanks.
Light never disappears. It consists of photons, which just keep going forever. The Cosmic Microwave Background that we detect in the sky was the light emitted about 13 and a half billion years ago that accordingly has traveled to us over the distance of 13 and a half billion light years and still going. It does get weaker and loses energy, but there is no limit to it (until you get to single photons).
Light, as photons themselves never stop travelling. The intensity is inversely proportional to the distance from the light source, so the intensity will be ever smaller and closer and closer to zero but never zero. However, information will be lost during the process as the light is more spread out, so it is hard for us to properly observe stars that are very far away.(ignoring the expansion of space)
Light can be thought of as particles of photons. They travel forever, and there are no limits, although they do get weaker and lose energy, as safesphere has said.
