Red light has a wavelength of 691 nm.

Convert this wavelength to meters.

1 nm = 10^-9 m

691nm = 691 * 10^9 = 6.91*10^-7m

10^-9 goat = nanogoat :-)

To convert the wavelength from nanometers (nm) to meters (m), you need to divide the value by 10^9, because there are 10^9 nanometers in a meter.

So, to convert the wavelength of 691 nm to meters:

691 nm ÷ 10^9 = 6.91 x 10^-7 meters

Therefore, the wavelength of 691 nm is equivalent to 6.91 x 10^-7 meters.

To convert the wavelength of red light from nanometers (nm) to meters (m), you need to divide the wavelength value by 1 billion (10^9) because there are 1 billion nanometers in a meter. Here's how you can do it:

Divide the wavelength value by 1 billion:
691 nm ÷ 1,000,000,000 = 0.000000691 meters.

Therefore, the wavelength of red light, 691 nm, is equal to 0.000000691 meters (or approximately 6.91 x 10^-7 meters) when converted to meters.