Final answer:
The diffraction angle can be calculated using the formula: sin(theta) = n * lambda / d, where n is the order of the minima, lambda is the wavelength of the light, and d is the width of the slit. Plugging in the values, the diffraction angle for this setup is 12.46 degrees.
Step-by-step explanation:
The diffraction angle can be calculated using the formula:
sin(theta) = n * lambda / d
Where:
- theta is the diffraction angle
- n is the order of the minima (in this case 28)
- lambda is the wavelength of the light (22 nm)
- d is the width of the slit (6,393 angstroms)
Plugging in the values:
sin(theta) = 28 * (22 x 10^-9 m) / (6,393 x 10^-10 m)
Solving for theta:
theta = arcsin(28 * 22 / 6,393) = 0.2172 radians
Converting radians to degrees:
theta = 0.2172 * (180 / pi) = 12.46 degrees