A monochromatic light of wavelength 500 nm is incident
- A parallel beam of monochromatic light of wavelength 500 nm is incident normally
- Monochromatic light of wavelength 500 nm is incident from air to glass
- Monochromatic light of wavelength 500 nm is incident on two parallel slits
- Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating
- A parallel beam of monochromatic light of wavelength 500 nm is incident normally on a perfectly