Question 32326
Period(T) = k(Length)^1/2
4 = k(12)^1/2
=>4=2k(sqrt3)
=>k=2/sqrt(3)
So, T = 2L/sqrt(3)
If L=3
T=6/sqrt(3) = 2sqrt(3) = 3.5 seconds(approx)
Answer: approx 3.5 seconds