devarshi-dt-logo

Question:

Express the number appearing in the following statements in standard form:
(i) 1 micron is equal to 1/1000000 m
(ii) charge of an electron is 0.000,000,000,000,000,000,16 coulomb
(iii) size of bacteria is 0.0000005 m
(iv) size of plant cell is 0.00001275 m
(v) Thickness of a thick paper is 0.07 mm

Solution:

(i) 1/1000000 = 1 × 10⁻⁶
(ii) 0.000,000,000,000,000,000,16 = 1.6 × 10⁻¹⁹
(iii) 0.0000005 = 5 × 10⁻⁷
(iv) 0.00001275 = 1.275 × 10⁻⁵
(v) 0.07 = 7 × 10⁻²