Physics: According to the inverse square law of light, if you double your distance to a source, the brightness a. decrease by a factor of 3. b. decrease by a factor of 4. c. decrease by a factor of 5. d. decrease by a factor of 6.

c Explanation: because i took it and got it correct...

According to the inverse square law of light,

MZ2017

15.01.2022

option (b)

Explanation:

According to the inverse square law,

$Brightness \alpha \frac{1}{distance^{2}}$

As the distance is doubles, the brightness becomes one fourth.

It means the brightness decreases by a factor of 4.

Option (b)

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muffinpuncher

01.08.2022

Explanation: because i took it and got it correct

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