Question

The term nanosecond represents

• A. One thousandth of a second
• B. One millionth of a second
• C. One billionth of a second
• D. One hundredth of a second

Hint:

Common time units: \[ \boxed{ \begin{aligned} 1\ \text{ms} &=10^{-3}\ \text{s}\\ 1\ \mu\text{s} &=10^{-6}\ \text{s}\\ 1\ \text{ns} &=10^{-9}\ \text{s} \end{aligned} } \]

Answer 1

The Correct Option is C

The SI prefix nano denotes \[ 10^{-9}. \] Therefore, \[ 1\ \text{nanosecond} = 10^{-9}\ \text{second}, \] which is one billionth of a second. Hence, \[ \boxed{(C)} \] is the correct answer.