Question

check the % error in t=(l/g)½. when error in l is 1% and error in g is 5%check the % error in t=(l/g)½. when error in l is 1% and error in g is 5%

Answer 1

If x and y have independent random errors

δx and δy, then the error in z = x + y is

δz =

p

δx2 + δy2.

2. If x and y have independent random errors

δx and δy, then the error in z = x × y is

δz

z

=

sµ

δx

x

¶2

+

µ

δy

y

¶2