Question

When the animal cells are together side by side by side, what will be the thickness of 'A'?
1) 70 A
2) 70 nm
B) 100 Aº
4) 140 A
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Answer 1

I think the answer will be 70A.....

Answer 2

When the animal cells are together side by side by side, the thickness of 'A' will be 70 nm.

Answer: Option 1

Explanation:

Usually the cell thickness is expressed in terms of nanometers. When the cells are arranged in a proper order it leads to the thick layer. When we observe the given values in the options, it is seen that the unit given after the value is A and Aº. From this point of difference it can be inferred that the correct value will be 70 nm as the unit and value is correctly mentioned.