The intensity of light from a light source varies inversely as the square of the distance from the light source. Write an equation for the variation. Use k as the constant, i for the intensity of the light, and d for the distance.

Question

anonymous · Answer

$$i = k/\sqrt{d}$$

anonymous · Answer

That's wrong. But you might not be able to tell since they didn't actually explain!

anonymous · Answer

I think I got it. i=k/d^2?

anonymous · Answer

Yes, that is correct. The distance squared is d^2.