The largest and smallest slits in these experiments are 0.16mm and 0.04mm wide, respectively. The wavelength of the laser light is 650nm. How many wavelengthswide are these slits?

The slits are 246 and 62 wavelengths wide, respectively.

Explanation:

Given that there are two slits:

the largest slit = x1 = 0.16mm or 0.00016m wide

the smallest slit = x2 = 0.04mm or 0.00004m wide, and

the wavelength of laser light = λ = 650nm or 650 * 10˄-9m

(a) the largest slit is X wavelengths wide where X = x1 / λ

Therefore, X = 0.00016m/650 * 10˄-9m = 246 wavelengths

(b) the smallest slit is X1 wavelengths wide, where X1 = x2 / λ

Therefore, Y = 0.00004m/650 * 10˄-9m = 62 wavelengths