Answer :
It's quite easy to calculate - one meter is billion nanometers (1 000 000 000), so:
- 1.7 meters = 1 700 000 000 nanometers
- 1.52 meters = 1 520 000 000 nanometers
- 1.7 meters = 1 700 000 000 nanometers
- 1.52 meters = 1 520 000 000 nanometers