Question

PLEASE EXPLAIN ! The answer is A .

Answer 1

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Answer 2

Answer:A

Explanation:

40divisions of E.G=10 divisions of S.M

10 divisions multiply by 0.01=0.1

So,0.1 divided by 40 divisions of E.G=0.0025mm

Thus,to covert 0.0025mm to micrometre we multiply it with 1000

The answer is 2.5 micrometre

So , 4eyepiece divisions is multiplied by 2.5 micrometre =10micrometre(1.0*10^1 micrometre)