The wavelength of light of a particular colour is 5800 Å. Express it in — (a) nanometer and (b) metre

The wavelength of light = 5800 Å

Substituting the value of wavelength in the relation above, we get,

10¹⁰ Å = 1 m

1 Å = 10^-10 m

⇒ 5800 Å = 5.8 × 10^-7 m

Hence, wavelength of 5800 Å in m = 5.8 × 10 ^{– 7} m