When laser light of wavelength 632.8 nm passes through a diffraction grating, the first bright spots occur at ±17.8∘ from the central maximum. (a) What is the line density (in lines/cm) of this grating? (b) How many additional bright spots are there beyond the first bright spots, and at what angles do they occur?

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d