Question

One meter is equal to 10 9 nanometers. How long in meters is 670 nanometers? 6.70 × 10 –7 m 6.70 × 10 –9 m 6.70 × 10 9 m 6.70 × 10 –11 m

Answer 1

10^9 nanometers = 1 m

670 nanometers = 670/10^9

= 6.7 × 10^-7m

Hope this helps