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in photography if you reduce the distance between the light and the subject by half, what happens to the illumination?​
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in photography if you reduce the distance between the light and the subject by half, what happens to the illumination?​

User Ahsan Aslam
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The illumination would strengthen by a factor of 4.

This is explained by the inverse-square law, which states that the power of light will be inversely proportional to the square of the distance.

User Schube
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