SSC
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]


you will get a large number


you will get a smaller number


Either A or B


None of the above

Detailed explanation1: A positive exponent indicates a large number and a negative exponent indicates a small number that is between 0 and 1. It is difficult to understand just how big a billion or a trillion is. Here is a way to help you think about it. 1 billion can be written as 1, 000, 000, 000 or represented as 109 .
Detailed explanation2: The number with the greater exponent is the greater number. 9 is greater than 7. 4.5 × 10 9 is the greater number. The answer is 4.5 × 10 7 < 4.5 × 10 9 .
Detailed explanation3: A positive exponent shows that the decimal point is shifted that number of places to the right. A negative exponent shows that the decimal point is shifted that number of places to the left. In scientific notation, the digit term indicates the number of significant figures in the number.