Physical Quantities and Measurements

• 0.0007

• 0.007

• 70000

• 7.0000

• None of the Choices

The speed of light which is a constant is given by 299,792,458 m/s. How many is its significant figures?

• 9

• 3

• Infinite

• None of the Choices

How many significant figures do 30000 have?

• 1

• 3

• 5

• Infinite

Which are the operations wherein we follow the smallest significant figures for the final answer?

• Addition

• Subtraction

• Multiplication

• Division

What is 525 meters in micrometers?

• 37 - 57 ohms

• 46 - 48 ohms

• 42 - 52 ohms

• 40 - 47 ohms