For small angles measured in radians:
tan θ ≈ sin θ ≈ y/L
The position of the second maxima for laser 2:
ymax,1 = mλ1L/d = 2(d/20)6.00/d = 0.6 m
Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 6.00 m away from the slits.
What is the distance Δymax-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum?
Δymax-min = ________ m
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