In a Young's double slit experiment, waves of wavelength λ, are incident on the two slits in phase. They travel to a point on the screen to produce a second minimum of the interference pattern. The difference in the distance travelled by the waves is:

In a Young's double slit experiment, waves of wavelength λ, are incid

1.	In a Young's double slit experiment, waves of wavelength λ, are incident on the two slits in phase. They travel to a point on the screen to produce a second minimum of the interference pattern. The difference in the distance travelled by the waves is:
A.	3 λ/2
B.	2λ
C.	λ
D.	λ/2
Answer» B. 2λ

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In a Young's double slit experiment, waves of wavelength λ, are incident on the two slits in phase. They travel to a point on the screen to produce a second minimum of the interference pattern. The difference in the distance travelled by the waves is:

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