Unit, dimensions, and vectors

Question

Earlier the wavelength of light was expressed in angstroms. one angstrom equals 10^-8cm. Now the wavelength is expressed in manometers. How many angstroms make one nanometre

Answer 1

1 angstrom = 10^–8 cm = 10^–10 m 

1 nanometer (nm) = 10^–9 m 

∴ 1 nm/1 angstrom = 10^–9 m /10^–10 m 

= 10 so 1 nm = 10 Å

Therefore, 10 Angstroms make 1 nanometre.

Answer 2

10 Angstorm = 1 nanometer