Question

explain why white light is not dispresed through a hallow prism?
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Answer 1

this is because dispersion occurs when incident light is refracted by denser medium of glass of prism, if the prism will be hollow then there will be no dense medium to refract the light and hence dispersion will not occur

Answer 2

if the polynomial ax^2+ bx^2 + 1 has the value of 0 to 15 when x has the values of 1 and - 2 respectively determine the polynomial and factorize it