At first minimum adjacent to the centraĺ maximum of a single slit of diffraction pattern the phase difference between huygen's wavelet from the edge of the slit and the wavelet from the mid point of the slit is1)pi/8 2)pi/43)pi/24)pi
At first minimum adjacent to the centraĺ maximum of a single slit of diffraction pattern the phase difference between huygen's wavelet from the edge of the slit and the wavelet from the mid point of the slit is
1)pi/8
2)pi/4
3)pi/2
4)pi