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Tpy6a [65]
2 years ago
10

A child looks at his reflection in a spherical Christmas tree ornament 8.0 cm in diameter in season that the image of his face i

s reduced by 1/2 how far is his face from the ornament
Physics
1 answer:
malfutka [58]2 years ago
8 0

From the information given,

diameter of ornament = 8

radius = diameter/2 = 8/2

radius of curvature, r = 4

Recall,

focal length, f = radius of curvature/2 = 4/2

f = 2

Recall,

magnification = image d

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<u>Answer:</u>

3.5 x 10^-8 J

<u>Explanation:</u>

We are given,

force experienced by a charge = 3.6 x 10^-4 N; and

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We know that, <em>Energy = force x distance</em>

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