# The period of a sample pendulam with small oscillations is given by -

$T=2\mathrm{\pi}\sqrt{\left(\raisebox{1ex}{$\mathrm{l}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{g}$}\right.\right)}$

If T is computed using l =8m and g = 9.8m/sec2, The approximate error in T if the true values are l = 8.05m and g = 9.81m/sec2.

Find the percentage eror in T.