ISL

Question 1

what is ISL?

Answer 1

a geometric consideration, an point source which will spread in all directions, it has no limits in range

Question 2

what is the equation?

Answer 2

I is indirectly proportional to d^2

Question 3

who obeys ISL?

Answer 3

all IR, sound, gravitational forces

Question 4

what happens as distance increases?

Answer 4

intensity decreases (the number of photons remains constant)