--------------------------Scales 3.11
- Draw a line of20 em length. Complete the rectangle of20 em x 0.5 em and divide it into
4 equal parts each representing 1 metre. Sub divide all into 10 main scale divisions.
1 msd = Im/l0 = Idm. - Take 10+ 1 = 11 divisions on the main scale and divide it into 10 equal parts on the vernier
scale by geometrical construction.
Thus Ivsd= llmsd/lO= 1.1dm= llcm - Mark 0,55, 110 towards the left from 0 (zero) on the vernier scale as shown.
- Name the units of the divisions as shown.
- 2.28m = (8 x vsd) + 14msd)
= (8 x O.llm) + (14 x O.lm)
= 0.88 + 1.4 = 2.28m.