The light intensity, l, is measured at a distance d away from a lamp. It is found that l is inversely proportional to square of d. It is observed that l = 180 and d = 7 a) Find the constant of the proportionality and write the equation including l and d. [2] b) Find the value of l when d = 2. [1] c) Find the value of d when l = 45.
Answers
Answered by
0
can't understand
Step-by-step explanation:
your question
sorry
Similar questions