Question

Vonnier
3. A students measures diameter of a sphere using
callipere having least count 0.1 mm and me
reports
diameter equal to 0.025307 meter. Numbers of signit
( ficance figure in diametere will be​

Answer 1

Explanation:

Number of division on main scale n=10

Number of division on vernier scale m=20

Main scale division 1 M.S.D.=1 mm

Least count of vernier caliper L.C.=M.S.D.×

m

n

=1 mm×

20

10

=0.5 mm

Main scale reading M.S.R.=35 mm

Coinciding division n

1

=5

Diameter of wire d=M.S.R.+n

1

×L.C.=35+0.5×0.5=35.25 mm