One key difference is their shape: a prism has two parallel and congruent bases connected by rectangular faces, while a pyramid has a polygonal base and triangular faces that converge to a single point called the apex.
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The main difference is in how they disperse light. A prism disperses light based on the material's refractive index, while a grating disperses light based on the wavelength of the light itself. This results in different patterns and resolutions in the spectra they produce.
.04 to .05 typically about 0.47
To calculate the phase difference between two waves, you can measure the difference in their starting points or peaks. This difference is usually expressed in degrees or radians.
A nano second is 1 billionth of a second. So there are 999,999,999 nano seconds difference between a second and a nanosecond
The difference between "g" and "g" is that the first one is a lowercase letter in the English alphabet, while the second one is a symbol used to represent the force of gravity in physics.