Question

What are the main differences in the gratting spectrum and prism spectrum?

Answer 1

The angle of refraction (theta') will be greater for blue, than it is for red. Long story short, dispersion with a prism produces a spectrum by refraction, where the smaller wavelengths of visible light (blue, violet etc) are refracted more than light of longer wavelength (red, yellow etc).

Answer 2

The angle of refraction (theta') will be greater for blue, than it is for red. Long story short, dispersion with a prism produces a spectrum by refraction, where the smaller wavelengths of visible light (blue, violet etc) are refracted more than light of longer wavelength (red, yellow etc).