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Question 3 The intensity of sunlight reaching earth is 1360 W/m 2 . Assume s...

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Question 3

The intensity

of sunlight reaching earth is 1360 W/m

. Assume sunlight is a sinusoidal

spherical EM wave. The distance

from the sun to earth is 1.50 x 10

¹¹

m. The distance from the sun to Mars is

2.28 x 10

¹¹ m.

(a)

What

is the electric field amplitude of sunlight on earth?

1.34 N/C

1.03 x 10⁶ N/C

1.80 N/C

1014 N/C

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