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1. A slit 1.24 mm wide is illuminated by light of wavelength 530 nm . The...

1. A slit 1.24 mm wide is illuminated by light of wavelength 530 nm . The diffraction pattern is seen on a screen 2.19 m away Find the distance between the first two diffraction minima on the same side of the central maximum in meters.

2. Monochromatic light with wavelength 539 nm fall on a slit with width 0.016 mm wide. The distance from the slit to a screen is 3.18 m. Consider a point on the screen 1.19cm from the central maximum.
a) Calculate θ (correct answer is .0037 rad)

b) Calculate α (in rad)

c) Calculate the ratio of the intensity at this point to the intensity at the central maximum.

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