In a particular scale A, one metreis divided into 500equal parts and in scale B one cm is divided into 5 equal parts and in scale C one mm is divided into 2 equal parts, then the accuracy of ` "________"`.

Options

A. `A gt B gt C`
B. `A=B lt C`
C. `A=B gt C`
D. `A=B=C`

Answer

B

Explanation

Least count of `A=1/(500)=0.002 m`
`I.C. of B=(1 cm)/5=(1 xx 10^(-2)m)/(5)=0.002m`
I.C. of C =`(1mm)/(2) =(1 xx 10^(-3))/(2)=0.0005m`
So, I.C. of A `=B gt C` or occurancy of `A=B lt C`