A student records the following physical quantities in scientific notation:
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
A student records the following physical quantities in scientific notation:
(a) For each quantity, state the number of significant figures present.
(b) For any two of the above quantities, explain clearly why the digits that appear in the exponent do not contribute to the count of significant figures.
(c) Quantity (ii) is to be rounded off to exactly three significant figures. Write the rounded value in scientific notation and state its number of significant figures.