Question

Express the number appearing in the following statements in standard form:
(i) $1$ micron is equal to $\frac{1}{1000000}$ 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

Answer 1

(i) $1000000=$ $1\times {10}^{-6}$

(ii) $0.000,000,000,000,000,000,16=$ $1.6\times {10}^{-19}$

(iii) $0.0000005=$ $5\times {10}^{-7}$

(iv) $0.00001275=$ $1.275\times {10}^{-5}$

(v) $0.07=$ $7\times {10}^{-2}$