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Zanzabum
3 years ago
7

If a light is moved twice (2x) as far from a surface, the area the light covers is ___ as big.

Physics
1 answer:
Ksenya-84 [330]3 years ago
6 0

Answer:

twice

Explanation:

From magnification = height of image / height of object

Distance of image/ distance of object = magnification

If the distance and height of the object represents the initial light distance and the exposed surface respectively.

And similarly the distance and height of the image represents the final light distance and the exposed surface respectively.

Hence the new image exposure would be twice as large.

If we use the formula our point of investigation is Height of image,

H2= D2/D1× H1

H2 = 2D2/D1 × H1

H2 = 2H1

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