Question

The wavelength of light of a particular colour is 5800 angstrom, express it in meter.

Answer 1

one angstrom = 10 to the power -10

so 5800*10^-10

Answer 2

Wavelength of light is 5800A

1nm=10A

5800Angstroms=5800/10nm

$1m = {10}^{9} angstroms$

$5800angstroms = 5800 \div {10}^{9} m$

5800 Angstroms = 5.8 × 10⁻⁷ m