The Diffraction Grating
 

The Diffraction Grating problem 19


A beam of light of wavelength is incident normally on a diffraction grating that has 300 lines per millimetre. The light passes through the grating and produces a series of maxima which are observed on a semicircular screen, as shown below.




What is the total number of maxima observed on the screen?


  • 8


  • 9


  • 16


  • 17



 

main author and content editor: Daniel Owoyomi