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nikitadnepr [17]
3 years ago
5

What happens to a path of a light ray parallel to the principal axis, after it passes through a converging

Physics
1 answer:
Simora [160]3 years ago
3 0

Answer: The ray that passes through the focal point on the way to the lens will refract and travel parallel to the principal axis. ... All three rays should intersect at exactly the same point.

Explanation: Once these incident rays strike the lens, refract them according to the three rules of refraction for converging lenses.

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Answer:

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Answer:

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efficiency = (useful energy transferred ÷ energy supplied) × 100

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<u>Way #1:</u>

We all know about the law of conservation of energy.  So we know that the total energy coming out must be  250J, because that's how much energy is going in.  The wasted energy is 75J, so the rest of the 250J must be the useful energy . . . (250J - 75J) = 175J useful energy.

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================================

<u>Way #2: </u>

How much of the energy is wasted ? . . . 75J wasted

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6 0
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450W

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