Wavelength of an incident light when it is incident normally on a diffraction grating having 3000 lines per centimeter angular separation is 10 is

Wavelength of an incident light when it is incident normally on a diff

1.	Wavelength of an incident light when it is incident normally on a diffraction grating having 3000 lines per centimeter angular separation is 10 is
A.	500 nm
B.	650 nm
C.	580 nm
D.	600 nm
Answer» D. 600 nm