Question

a vernier scale has 10 divisions. it slides over a main scale, shows pitch is 1.0mm. if the number of divisions on the left hand of zero of vernier on main scale are 4 and the 6th vernier scale division coincides with main scale, calculate the length in cm

Answer 1

Answer:

Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate. The antibiotic has no “target” to attack in a virus. However, antiviral medications and vaccines are specific for viruses.

Answer 2

Answer:

Least count = ( pitch of main scale) / ( No. of divisions of vernier scale ) = 1 mm /10 = 0.1 mm

 

Length =  ( Main Scale Reading ) + [ ( No. of Divisions of vernier scale ) ×( Least Count) ] = 56 + 8×0.1 = 56.8 mm

mark me as brainliest.

hope it helps u