Consider the setup of a single slit experiment. hint: use a small angle approximation;

e. g., sin θ = tan θ . y3 l a s1 s2 θ viewing screen ×10 determine the height y3, where the third minimum occurs. 1. y3 = λ a l 2. y3 = 5 λ 2 a l 3. y3 = 2 λ a l 4. y3 = 9 λ 2 a l 5. y3 = 5 λ a l 6. y3 = 7 λ 2 a l 7. y3 = 3 λ 2 a l