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Why light ray move straight through optical center?

Updated: 8/9/2023
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Suryaeca

Lvl 1
14y ago

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as per the law of reflection angle incidence=angle reflection and angle is measured with respect to normal so when it passes from centre its normal,its incident ray, its reflected ray becomes in straight line

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Wiki User

14y ago
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Wiki User

12y ago

Curiously enough, this is true by construction. A straight line (also known as a geodesic) is defined as the trajectory of light, so light itself travels in straight rays by definition. Such straight lines are also the lines of least distance.

You can get a feeling why this is so by considering a light ray. Imagine it traveling from some point A to some other point B. Now since the straight line is the shortest way from A to B, light must travel this path because otherwise it would be possible to take the shortest way yourself (at a speed slower than the speed of light) and arrive at B before light, thus traveling faster than light itself!

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13y ago

when the ligt ray passes through optical centre it does not refract because when the ligt rays passes through other part of lens it converge or diverge so we assume that the optical centre has no power converge or diverge so the ray does not refract through he optical centre

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13y ago

"angle incidence=angle reflection" If your angle of incidence is not skewed, your angle of reflection will also remain unaltered.

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Q: Why light ray move straight through optical center?
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