Which is the destructive interference formula for diffraction grating problems?

dsin 0 = [n+1/2]
dcos 0 = [n+1/2]
dcos 0 = n
dsin 0 = n

The formula for the brighter patches resulting from constructive interference and darker patches resulting from destructive interference in a diffraction grating is:

dsin(θ) = nλ

Here, d is the spacing between the grating, θ is the angle of light, n is the fringe order and λ is the wavelength. N has integer values only.

Destructive interference occurs between the fringes, so the formula for destructive interference becomes:

dsin(θ) = (n+1/2)λ, where n is again an integer.

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20