MDCAT Physics MCQ #3969

MDCAT Physics MCQ #3969

1. Question 1

   Q1. What is the condition for destructive interference to occur?

   • A) Path difference is a whole number of wavelengths
   • B) Path difference is an odd number of half-wavelengths
   • C) Path difference is zero
   • D) Path difference is a multiple of π

   Answer: Path difference is an odd number of half-wavelengths

   Explanation: Destructive interference occurs when the path difference is an odd multiple of λ/2. Option A is incorrect because it results in constructive interference.