Homework Answers
I)Frequency=1/(time period)
Here ,time period=12 s.
So, frequency=1/12=0.083 Hz.
II) Time period=2π(l/g)^0.5, where l is length of the string and g is gravitational acceleration.
So,2π*(l/9.8)^0.5=12
=>l/9.8=[12/(2π)]^2=3.64756
=> l=3.64756*9.8=35.8 m.
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