Question

While measuring the length of a rod with a vernier
callipers, Fig. 1.14 below shows the position of its
scales. What is the length of the rod ?
3
7
cm
MAIN SCALE
VERNIER SCALE​

Answer 1

Answer:

3.07 cm

Step-by-step explanation:

because the least count of vernier is 0.1mm so the reading will be

MSR+ (VSR*LC) = 3cm+ (7*0.01)cm = 3.07 cm

Answer 2

from the figure,

0 of the vernier calipers has gone past 3 + 0.3= 3.3 CM of main scale also 6th division line of vernier scale matches with line of main scale.

so total reading is 3.3+6×0.01 =3.36cm