Question

The period of oscillation of a simple pendulum is given
by T = 21
where l is about 100 cm and is known to
have I mm accuracy. The period is about 2 s. The time of
100 oscillations is measured by a stop watch of leasi
count 0.1 s. The percentage error in g is
(a) 0.1%
(b) 1%
(c) 0.2%
(d) 0.8%
​

Answer 1

...............................c