Light containing a combination of blue (with wavelength 450 nm), green and orange passes through an unknown device and hits a screen positioned 10m away. The figure shows a graph of the intensity of each color as a function of position across the screen, and the distance d shown is equal to 1cm. About this situation, it is stated: (I)The device may be a single slit with aperture a = 0.45 mm, and the pattern shown is that of diffraction. (II) The figure cannot be correct, since the maxima of order 1 blue are closer to the center than the 1st order maxima of orange. (III) The region of the graph around the 4⁰ maximum of blue indicates that the green and orange present must have wavelengths equal to 560 nm and 620 nm, respectively. Which ones are true? a)none
Light containing a combination of blue (with wavelength 450 nm), green and orange passes through an unknown device and hits a screen positioned 10m away. The figure shows a graph of the intensity of each color as a function of position across the screen, and the distance d shown is equal to 1cm. About this situation, it is stated: (I)The device may be a single slit with aperture a = 0.45 mm, and the pattern shown is that of diffraction. (II) The figure cannot be correct, since the maxima of order 1 blue are closer to the center than the 1st order maxima of orange. (III) The region of the graph around the 4⁰ maximum of blue indicates that the green and orange present must have wavelengths equal to 560 nm and 620 nm, respectively. Which ones are true?
a)none
b)only l
c)only ll
d)only lll
e)only l and ll
f)only l and lll
g)only ll and lll
h)all
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