Question

What is smaller than a second?

Answer 1

The units smaller than a second are:

1. Deciseconds: ${10}^{-1}$s
2. Centiseconds: ${10}^{-2}$s
3. Milliseconds: ${10}^{-3}$ s
4. Microseconds: ${10}^{-6}$ s
5. Nanoseconds: ${10}^{-9}$ s
6. Picoseconds: ${10}^{-12}$ s
7. Femtoseconds: ${10}^{-15}$s