Fraunhofer diffraction at a double slit is observed using the light of wavelength λ. The width of each slit is "a" and the width of the opaque portion between the two slits is 'b". The angular separation between any two consecutive maximum in the diffraction pattern is:

Fraunhofer diffraction at a double slit is observed using the light of

1.	Fraunhofer diffraction at a double slit is observed using the light of wavelength λ. The width of each slit is "a" and the width of the opaque portion between the two slits is 'b". The angular separation between any two consecutive maximum in the diffraction pattern is:
A.	λ/(a + b)
B.	λb/(a + b)2
C.	λb/a2
D.	λ a/b2
Answer» B. λb/(a + b)2

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Fraunhofer diffraction at a double slit is observed using the light of wavelength λ. The width of each slit is "a" and the width of the opaque portion between the two slits is 'b". The angular separation between any two consecutive maximum in the diffraction pattern is:

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