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A slit of width d is illuminated by red ...

A slit of width d is illuminated by red light of wavelength `6500Å` For what value of d will the first maximum fall at angle of diffractive of `30^(@)`

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To solve the problem, we need to find the slit width \( d \) for which the first maximum occurs at an angle of \( 30^\circ \) when illuminated by red light of wavelength \( 6500 \, \text{Å} \). ### Step-by-step Solution: 1. **Identify the Given Values:** - Wavelength \( \lambda = 6500 \, \text{Å} = 6500 \times 10^{-10} \, \text{m} \) - Angle \( \theta = 30^\circ \) ...
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