Find the angular spread between central maximum and first order maximum of the diffraction pattern due to a single slit of width. 0.20 mm, when light of wavelength 5460 Å is incident. on it normally.
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A: mB=300 lbmA=400 lbfk=0.20θb=arctan43=53.1°θA=arctan34=36.9° f=friction force =fkN
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