The principle of magnification depends upon the relative area of light admitted into the eyepiece.

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Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

Determine the maximum r-value of the polar equation r =3+3 cos 0

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?