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A ray of light impinges on a mirror at 35 degrees a second mirror is fastened at 90 degrees to the first. After striking both mirrors at what angle relative to the incoming ray is the outgoing ray?
Zero degrees. The ray will leave the two mirrors along a path parallel to the one it came in on. This is the principle of the corner reflector, which is often used as a radar target. Note that the corner reflector uses three reflecting surfaces (that are set up at 90o from each other) instead of the two like are being used here. Wikipedia has a really great drawing that illustrates this two-dimentional problem very nicely. A second link is provided to the article on the corner reflector and the 3-D aspects. == ==
Has a reflecting surface that curves outward?
A convex reflector.
What are common phrases using the word corner?
out of the corner of my eye just around the corner cutting corners have a corner on the market down on the corner at the corner tap/bar/store/gas station on the corner at the corner remote corner of the world backed into a corner in a corner of my mind painted himself into a corner
Is it 'round the corner' or 'around the corner'?
around the corner.
Are monitors measured side to side or corner to corner?
Corner to corner just like a T V.
