Question

Which of these time measurements is the smallest?

0.02 seconds
0.02 teraseconds
2,500 milliseconds
25,000 nanoseconds

Answer 1

25,000 nanoseconds is the smallest time measurement

Answer 2

In order to answer the question, we convert the measurements given to a common base unit. For this case, we use seconds.

A) 0.02 seconds

B) 0.02 teraseconds x (10^12 s / 1 terasecond) = 2x10^10 seconds

C) 2,500 milliseconds x (1 s / 1000 ms) = 2.5 seconds

D) 25,000 nanoseconds x (1 x 10^-9 s / 1 nanosecond) = 2.5 x 10^-5 seconds

So ,The correct answer is option " D "