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fgiga [73]
3 years ago
15

Speed of light in a medium with n > 1

Physics
2 answers:
Sidana [21]3 years ago
7 0

Answer:

C

Explanation:

Without thinking, the answer is C.

The problem is with D. Of course it is going to depend on the transparency. If the material is a rock, then the light won't go through, and n >>>1.  I don't think you are intended to think that way, but I sure wish D wasn't there. I'd answer C, but be prepared to see it come out as D.

Tcecarenko [31]3 years ago
7 0

Answer:

it and i quote you "is less than in free space

Explanation:

i cant explain

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A spherical, conducting shell of inner radius r1= 10 cm and outer radius r2 = 15 cm carries a total charge Q = 15 μC . What is t
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a) E = 0

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Explanation:

a)

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b)

Here we want to find the magnitude of the electric field at a distance of

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E=\frac{15\cdot 10^{-6}}{4\pi (8.85\cdot 10^{-12})(0.20)^2}=3.38\cdot 10^6 N/C

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