to investigate the dependence of angle of deviation on the angle of incidence using a hollow prism
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Answer:
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Explanation:
Answer:
PRISM AND NATURE OF LIGHT:
Before Isaac Newton, it was believed that white light was colorless, and that the prism itself produced the color. Newton's experiments demonstrated that all the colors already existed in the light in a heterogeneous fashion, and that "corpuscles" (particles) of light were fanned out because particles with different colors traveled with different speeds through the prism. It was only later that Young and Fresnel combined Newton's particle theory with Huygens' wave theory to show that color is the visible manifestation of light's wavelength. Newton arrived at his conclusion by passing the red color from one prism through a second prism and found the color unchanged. From this, he concluded that the colors must already be present in the incoming light
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thus, the prism did not create colors, but merely separated colors that are already there. He also used a lens and a second prism to recompose the spectrum back into white light. This experiment has become a classic example of the methodology introduced during the scientific revolution. The results of this experiment dramatically transformed the field of metaphysics, leading to John Locke's primary vs secondary quality distinction. Newton discussed prism dispersion in great detail in his book
Opticks
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He also introduced the use of more than one prism to control dispersion.
Newton's description of his experiments on prism dispersion was qualitative, and is quite readable. A quantitative were introduced in the 1980s.