Question

Radius of the Bob is 0.5cm
Standard value of g is 9.8m/
${s}^{2}$

what will be
(i)slope of the graph=AB/BC=?
(iI) value of g=4π2/slope=
​

Answer 1

Answer:

Here, T=2π

g

L

Squaring both sides, we get, T

2

=

g

4π

2

L

org=

T

2

4π

2

L

The relative error in g is,

g

Δg

=

L

ΔL

+2

T

ΔT

Here, T=

n

t

and ΔT=

n

Δt

∴

T

ΔT

=

t

Δt

The errors in both L and t are the least count errors.

∴

g

Δg

=

10

0.1

+2(

50

1

)=0.01+0.04=0.05

The percentage error in g is

g

Δg

×100=

L

ΔL

×100+2(

T

ΔT

)×100=[

L

ΔL

+2(

T

ΔT

)]×100=0.05×100=5%