Answered: If the Sun suddenly turned off, we…

If the Sun suddenly turned off, we would not knowit until its light stopped coming. How long would that be,given that the Sun is 1.496 × 1011 m away?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 41P: If the Sun suddenly turned off, we would not know it until its light stopped coming. How long would...

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Concept explainers

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.

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If the Sun suddenly turned off, we would not know
it until its light stopped coming. How long would that be,
given that the Sun is 1.496 × 1011 m away?

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