Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is
a)
b)
c)
d)
Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is
a)
b)
c)
d)
Question ID - 150212 | SaraNextGen Answer
Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is
a)
b)
c)
d)
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Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is |
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a) |
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b) |
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c) |
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d) |
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1 Answer - 5876 Votes
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Answer Key : (d) -
Answer Link(d)
To have the first minimum, the path difference between the waves from 
and 
. The path difference between the waves from 
and 
at the same point should be 
or phase difference is 
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