Question

25. Which of the following is the standard form of
0.00001275?
(a) 1.275 x 10-5
(b) 1.275 x 105
(c) 127.5 x 10-1 (d) 127.5x107​

Answer 1

0.00001275

We must,express it in the form k×10^n,where 1< k<10

=>1.275×10^-5

Hence,the correct option is a.