Question 420: Waves Optics

Question

At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

Accepted Answer

For first minima at P
AP Ã¢ÂÂ BP = $$\lambda $$
AP Ã¢ÂÂ MP = $${\lambda  \over 2}$$
So phase difference, $$\phi $$ = $${{2\pi } \over \lambda } 	imes {\lambda  \over 2}$$ = $$\pi $$ radian

Answer

$$\pi $$ radian

Answer

$${\pi  \over 8}$$ radian

Answer

$${\pi  \over 4}$$ radian

Answer

$${\pi  \over 2}$$ radian

Waves Optics

At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

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