Interference
 

Interference problem 18


When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?


  • The lamps are not point sources.


  • The lamps emit light of different amplitudes.


  • The light from the lamps is not coherent.


  • The light from the lamps is white.


 

main author and content editor: Odafe Adjeke