Question

2 points
12. the wave number of a
beam of light is 400 per cm
what is the wavelength of the
light in nanometre?
O O
2.5x104nm
O 이
2.3x105nm
3.2x106nm
4.5x103​

Answer 1

Answer:

400 per sec

oo

2.3 105 nm = 189047