alleryFor single-slit diffraction of width a, angular position of m-th minimum:
Asin θ_m = m × 2λ/a
BNo formula
Csin θ_m = (m + 1/2) λ / a
Dsin θ_m = m λ / a
Answer & Solution
Correct answer: D. sin θ_m = m λ / a
**Single-slit minima:** a sin θ = m λ (m = ±1, ±2, ...).
Note this is opposite of YDSE (which has bright at m λ)
single slit has dark at m λ because of within-slit destructive interference.
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