How many nanometers are there in 100 nm?

The question asks how many nanometers are in 100 nanometers. Since the units are the same (nanometers), there is a direct equivalence: 100 nanometers is simply 100 nanometers.

Converting nanometers to centimeters involves understanding the metric prefixes where 1 centimeter (cm) equals 10 million nanometers (10⁷ nanometers). Therefore, when converting nanometers to centimeters:

1 nanometer = ( 10^{-9} ) meters

1 centimeter = ( 10^{-2} ) meters

To convert 100 nanometers to centimeters, you can perform the calculation:

100 nm = 100 × ( 10^{-9} ) m = ( 100 \times 10^{-7} ) cm = ( 10^{-5} ) cm.

This conversion indicates that 100 nm does not equal any of the options provided because it's not a large enough quantity to reach 1 cm.

Given that the answer you provided was B, which states 10⁷ cm, this is an incorrect conversion since 100 nm does not equal 10⁷ cm. The correct conversion should affirm that 100 nm is much smaller than any cm value and does not yield a whole number