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

As we know, 1nm = 10 Å Given, The wavelength of light = 5800 Å Substituting the value of wavelength in the relation above, we get, Hence, wavelength of 5800 Å in nm = 580 nm. (b) As we know, 1m = 10 10 Å Given, The wavelength of light = 5800 Å Substituting the value of wavelength in the relation above, we get, Hence, wavelength of 5800 Å in m = 5.8 x 10 -7 m.