Two coherent microwave sources S₁ and S₂ are separated by 4λ along the y-axis, with S₁ at the origin. A detector moves along the x-axis from S₁. Find the first x>0 for which a maximum occurs.

Question

G1 Physics · Accepted Answer

For detector distance x from S₁, the path difference is Δ=√(x²+16λ²)-x. At x=0, Δ=4λ. The first non-zero x maximum occurs at Δ=3λ. Solving √(x²+16λ²)-x=3λ gives x=7λ/6. Option D.

Two coherent microwave sources S₁ and S₂ are separated by 4λ along the y-axis, with S₁ at the origin. A detector moves along the x-axis from S₁. Find the first x&gt;0 for which a maximum occurs.

Two coherent microwave sources S₁ and S₂ are separated by 4λ along the y-axis, with S₁ at the origin. A detector moves along the x-axis from S₁. Find the first x>0 for which a maximum occurs.