rorycampbell0721 rorycampbell0721

01-03-2021
Chemistry

contestada

How many times as bright as a light that is 90 m away from you does a light that is 10 m away from you appear?

Respuesta :

Supernova11 Supernova11

02-03-2021

Answer:

81 x as bright

Explanation:

The intensity of light is dependent on distance according to this simple equation:

(90/10)^2 = 9^2

= 81

This was derived from the inverse-square law. Respectively a light that is 10 m away from you is 81 x as bright.

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