Which One of the Following Mathematical Expressions Is Correct for Destructive

Multiple Choice

Which one of the following mathematical expressions is correct for destructive interference for two beams of light in the double slit experiment?

A) Path Difference = (m - 1/2) λ, m = 0, ±1, ±2, . . .
B) Path Difference = λ/m, m = 0, ±1, ±2, . . .
C) Path Difference = mλ, m = 0, ±1, ±2, . . .
D) Path Difference = mλ², m = 0, ±1, ±2, . . .
E) Path Difference = m/λ, m = 0, ±1, ±2, . . .