Which of the following unit conversions are true?
I. 1 km = 109 μm
II. 1 cm = 103 mm
III. 1 mg = 103 μg
IV. 1 kg = 106 mg
A I and II only
B I and IV only
C I, III and IV only
D II and III only
Ans 1: (Master Answer)
Class : Class 1
C
1 kilometer = 10^3 meter
1 micrometer = 10^(-6) meter
1 millimeter = 10^(-3) meter
1 centimeter = 10^(-2) meter