a. 27.5 x 10-10 m b. 0.00023 x 10-2 s
Ans:
a. 27.5 x 10-10 m
We will convert the number first to scientific notation. For this purpose, we have to move the decimal to bring it in between 2 and 7.
27.5 x 10-10 m = 2.75 x 10+1 x 10-10 m = 2.75 x 10-9 m
As 10-9 = n, is equal to nano, so: 2.75 nm
27.5 x 10-10 m = 2.75 nm
b. 0.00023 x 10-2 s
We will convert the number first to scientific notation. For this purpose, we have to move the decimal to bring it in between 2 and 3.
0.00023 x 10–2 s = 2.3 x 10-4 x 10–2 s = 2.3 x 10-6 s
As 10-6 = μ is equal to micro, so: 2.3 μm
0.00023 x 10–2 m = 2.3 μm