The thickness of an 800 pages of book is 18mm. Calculate the thickness of one leaf of the book giving your answer in meters and in standard form
-
A.
2.25 x 10-4m -
B.
50 x 10-4m -
C.
2.25 x 10-5m -
D.
4.50 x 10-5m
Correct Answer: Option C
Explanation
Thickness of an 800 pages book = 18mm to meter
18 x 103m = 1.8 x 10-2m
One leaf = (frac{1.8 times 10^{-2}}{800})
= (frac{1.8 times 10^{-2}}{8 times 10^{2}})
= (frac{-1.8}{8}) x 10-4
= 0.225 x 10-4
= 2.25 x 10-5m