A screen is placed  from a single slit, which is illuminated with  light. If distance between the first and third minima in the diffraction pattern is , the width of the slit is a) b) c) d)

Question ID - 150004 :- A screen is placed  from a single slit, which is illuminated with  light. If distance between the first and third minima in the diffraction pattern is , the width of the slit is a) b) c) d)

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Answer Key : (b) -
 (b) Position of  minima

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 In a Fraunhoffer diffraction at single slit of width  with incident light of wavelength  the first minimum is observed, at angle . The first secondary maximum is observed at an angle a) b) c) d)

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