Question

find the lengths of the simple pendulum which completes 6 oscillation in 15s (g=10m/s2

Answer 1

Answer:

The lengths of the simple pendulum = 66 cm

Explanation:

Frequency of simple pendulum

= 6/15

0.4 Hz

Now , Frequency of pendulum is given by formula

$f = \frac{1}{2\pi } \sqrt{g/l}$

$l = 10/4*3.14*3.14*0.4$

l = 0.66 m = 66 cm