Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine Problem 110
The color of an iridescent object, like a butterfly wing or a feather, appears to be different when viewed from different angles. The color of a painted surface appears the same from all viewing angles. Explain the difference.
Problem 111
What is the difference between a diffraction grating and a screen with one or two slits in it?
Problem 112
What is the path-length difference between rays of light that form the first- order principal maximum of a diffraction grating?
Problem 113
Some diffraction gratings have only first-order and second-order principal maxima. Others have thirdorder or higher-order principal maxima as well. Explain the difference.
Problem 114
If the spacing between lines on a grating is increased, does the angle to the first-order principal maximum increase, decrease, or stay the same? Explain.
Problem 115
Is the angle to the first-order principal maximum for red light greater than, less than, or equal to the angle to the first-order principal maximum for blue light? Explain.
Problem 116
If the number of lines on a diffraction grating is increased, does the intensity of the principal maxima increase, decrease, or stay the same?
Problem 117
What is the spacing (in meters) between lines on a diffraction grating with 2500 lines per centimeter?
Problem 118
A diffraction grating has lines that are separated by \(1.3 \times 10^{-5} \mathrm{~m}\). How many lines per centimeter does this grating have?
Problem 119
What is the angle to the first-order principal maximum when light with a wavelength of \(626 \mathrm{~nm}\) shines on a diffraction grating with a spacing between slits of \(0.88 \times 10^{-5} \mathrm{~m}\) ?
