For destructive interference from in-phase sources, the path difference is:

  1. lambdan
  2. (n + tfrac12)lambda
  3. 2nlambda
  4. nlambda
Answer

B) (n + tfrac12)lambda

Half-wavelength offsets. SLO P-11-D-08 · Understanding

Physics MCQ · More Superposition, Stationary Waves and Beats MCQs · Practise