Express the number appearing in the following statements in standard form:
(i) `1` micron is equal to`1/(1000000)` meter.
(ii) Charge of an electron is `0. 0000000000000000016 `coulombs.
(iii) Size of a bacteria is `0.0000005` meter.
(iv) Size of a plant cell is `0.00001275` meter.
(v) Thickness of a normal paper is `0.07` mm.

Explanation

(i) `1` micron is equal to`1/(1000000)` meter.
`=1000000`
`= 1×10^(-6)`

(ii) Charge of an electron is `0. 0000000000000000016 `coulombs.
`=0.00000000000000000016`
`= 1.6×10^(-19)`

(iii) Size of a bacteria is `0.0000005` meter.
`=0.0000005`
`= 5×10^(-7)`

(iv) Size of a plant cell is `0.00001275` meter.
`=0.00001275`
`= 1.275×10^(−5)`

(v) Thickness of a normal paper is `0.07` mm.
`=0.07`
`= 7×10^(−2).`