Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic - Page 39: 62c

$556.2 ps$

We get this answer because the relationship between a second and a ps (picosecond) is 10$^{12}$. There are 1 000 000 000 000 pico seconds in a second (1 trillion). We multiply the original figure by one trillion to get our answer.