two lasers are shining on a double slit, with slit separation . Laser 1 has a wa

Question

two lasers are shining on a double slit, with slit separation . 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 5.70 away from the slits.

(1)What is the distance between the first maxima (on the same side of the central maximum) of the two patterns?Express your answer in meters.

(2What is the distance between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum?
Express your answer in meters.

Explanation / Answer

i=?L/d L be the distance from the slits to the screen. so i1=L/20 and i2=L/15 ---- distance between the first maxima on the same side of the central maximum ------- ?=L/15-L/20=L/60=0,095(m) ---------- 2*L/20-(L/30+2*L/15)=L/10-L/30-2L/15=-L/15=-0,38(m)

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