Problem

Problem

Intensity observed in an interference pattern is I=I0sin⁡2θI = I_0 \sin^2 \theta . At θ=30∘\theta = 30^\circ , intensity I=5±0.002I = 5 \pm 0.002 . The percentage error in angle is (1) 43×10−2%4\sqrt{3} \times 10^{-2} \% (2) 4π×10−2%\frac{4}{\pi} \times 10^{-2} \% (3) 43π×10−2%\frac{4\sqrt{3}}{\pi} \times 10^{-2} \% (4) 3×10−2%\sqrt{3} \times 10^{-2} \%

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