Question

f a 1/d^2 and d = 5 when f = 16. Find the value of f when d = 10​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Given F a 1/d^2 and d = 5 when f = 16. Find the value of f when d = 10

•   Now f is inversely variance with  d^2
•      So f = k/d^2 where k is a constant---------------1
•         Or k = f x d^2
•              k = 16 x 25 (since f = 16 and d = 5)
•              k = 400
•        Substituting k in equation 1 we get
•              f = 400 / d^2
•    We need to find f when d = 10, so we get
•                   f = 400 / 10^2
•                    f = 400 / 100
•                     f = 4

Reference link will be

https://brainly.in/question/4731518