Question

9.0 x 10-12m can be expressed as
(A) 9.0 μm

(B) 90 nm

(C) 9.0 pm

(D) 9.0 fm​

Answer 1

Answer:

(C) 9 pm.

Explanation:

Here, it is important to know the following unit conversions :-

$1mewm = {10}^{ - 6} m \\ 1nm = {10}^{ - 9}m \\ 1pm = {10}^{ - 12} \\ 1fm = {10}^{ - 15}m$

n = nano, p= pico , f = femto

Regards

Kshitij

Answer 2

The answer is (c) 9.0 pm