Question

1. Wavelength of sodium light is 5890 Å. Express it in metre and nanometri
​

Answer 1

∧=5890 A

1A=1*10⁻¹⁰m

∧=5980*10⁻¹⁰m

=5.98*10⁻⁷m

and in nonometre

1 n=1*10⁻⁹

∧=598 nm