Physics, asked by dasbs999, 1 year ago

Does the illuminance of a surface decreases as it is moved away from the light source why ? Please tell fast it’s urgent‍♀️H

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Answered by pandeysakshi2003

So as you move farther away from a source, the illumination intensity decreases decreases. This can be explained by the particle nature of light. The reason the illuminance decreases is because less photons hit the surface or more photons miss the surface the further away it gets.

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Answered by Anonymous

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Because light spreads out as it gets further from the source.

Clearly at close proximity you would get most of the light, whereas at a distance you would only get a fraction of that.

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