4.A monochromatic collimated light with a wavelength of = 600 nm is incident perpendicularly onto a diffraction grating.Two adjacent principal maxima appear in the direction of sin = 0.2 and sin0=0.3, and the fourth order is missing.(1) Calculate the grating constant d.(2) What is the minimum possible width a of the transmission slit?(3) According to the above selected d and a, find all the principal maxima orders that may appear on the screen.

Given: Wavelength = λ = 600 nm mth principal maxima at sinθ1 = 0.2 (m+1)th principal maxima at sinθ2…

4.A monochromatic collimated light with a wavelength of = 600 nm is incident perpendicularly onto a diffraction grating. Two adjacent principal maxima appear in the direction of sin=0.2 and sin=0.3, and the fourth order is missing. (1) Calculate the grating constant d. (2) What is the minimum possible width a of the transmission slit? (3) According to the above selected d and a, find all the principal maxima orders that may appear on the screen.

4.A monochromatic collimated light with a wavelength of = 600 nm is incident perpendicularly onto a diffraction grating. Two adjacent principal maxima appear in the direction of sin=0.2 and sin=0.3, and the fourth order is missing. (1) Calculate the grating constant d. (2) What is the minimum possible width a of the transmission slit? (3) According to the above selected d and a, find all the principal maxima orders that may appear on the screen.