The relation n_1 sin theta_1 n_2 sin theta_2 which applies as a ray of light str

Question

The relation n_1 sin theta_1 n_2 sin theta_2 which applies as a ray of light strikes an interface between two media, is known as: A) Gauss' law B) Snell's law C Faraday's law D) Cole's law E) law of sines A tiny sphere carrying a charge of 6.5 mu C sits in an electric field, at a point where the electric potential is 240 V. What is the sphere's potential energy? A) 2.7 times 10^-8 J B) 6.5 times 10^-6 J C) 1.6 times 10^-3 J D) 240 J E) 3.7 times 10^-7 J when a dielectric is placed between charged plates, the polarization of the medium produces a) a zero electric field b) an electric field opposing the field off the charges on the plate of the capacitor. c) an electric field in the same direction as the field of the charges on the plate of the capacitor

Explanation / Answer

22. (B) Snell's law

23. PE = q V

= (6.5 x 10^-6) (240)

= 1.56 x 10^-3 J

Ans(C)

25) (B)

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