The prefix used for 10-18is:a)attob)centic)kilod)deciCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

The prefix used for 10^-18 is: atto-

Answer

By option elimination the answer is A centi is for 10 to the power minus 2, kilo for 10 to the power 3 & deci for 10 to the power minus 1

Answer

Prefix for 10^-18 is Atto-

Atto- is a prefix used in the International System of Units (SI) to denote a factor of 10^-18. It is represented by the symbol 'a'. This prefix is derived from the Danish word 'attan', which means eighteen.

Other commonly used SI prefixes include:

1. Kilo-: Denotes a factor of 10^3, which means 1,000. It is represented by the symbol 'k'.

2. Centi-: Denotes a factor of 10^-2, which means 0.01. It is represented by the symbol 'c'.

3. Deci-: Denotes a factor of 10^-1, which means 0.1. It is represented by the symbol 'd'.

Uses of Atto-

The Atto- prefix is commonly used in scientific notation when dealing with extremely small units of measurement, such as atoms and molecules. For example, the mass of an individual proton is approximately 1.67 x 10^-27 kilograms, which can also be written as 1.67 attograms.

In conclusion, Atto- is the correct prefix for 10^-18.

Answer

You have to learn the whole series. There is no explaination of that type questions .

Answer

Atoo - 10^-18 centi - 10^-100 kilo - 10^-3 deci - 10^-10. so answer is 'A'

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