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Laser Mirror
The drawing shows a laser beam shining on a plane mirror.... Physics Problem?
The drawing shows a laser beam shining on a plane mirror that is perpendicular to the floor. The beam's angle of incident is (theta)= 31.7. The beam emerges from the laser at a point that is 1.10m from the mirror and 1.80 m above the floor. After the reflection, how far from the base of the mirror does the beam strike the floor?
http://www.webassign.net/CJ/p25-4.gif
I know that (theta)i= (theta)r, I just don't know how to figure out the rest! I've tried 1.457 and 1.4549 as my answers, but these are not right. I don't know what I'm doing wrong. Please help!
the total horizontal distance the laser travels to the floor is:
1.8/tan(31.7)=2.91m
Subtract the 1.1m the light travels to the mirror, and the answer is:
1.81m
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CO2 Laser Dia 20mm Focus 55mm Focal ZnSe Lens Mirror | |
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20x STERLING SILVER LASER DISCO MIRROR ROUND BEAD 3mm #400 | |
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Used Omnisistem Tunnel Diamond Cut Laser Mirror 042112 $199.99 In Store Used USED OMNISISTEM TUNNEL DIAMOND CUT LASER MIRROR 042112 |
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Trapani Mirror $280 Laser cut brushed aluminum with a light antique stain placed on top of an aged black wood base. Mirror is beveled. -Material: MDF, Metal -Actual Mirror Dimensions: 13.75 x 13.75 -Designer: Billy Moon |
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Laser Cutout Table With Glass
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Quantum cryptography equipment Photo Mugs
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The Laser Game: Khet 2.0
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LASER DANCE - MIRROR SHOW
Is there some metal that is reflective to laser light like a mirror when machined and or polished?
I'm a machinist and I need to make a precision reflective surface, I can put a mirror on it, but I'm not sure how accurate it would be. But I know I can machine and grind a surface with a mirror finish. Will this be comparable to a mirror though?
Should work reasonably well when polished. Aluminum and silver work well, but almost any metal will reflect laser light well enough (though mild steel is fairly dark and will absorb some of the light).
The only reason they put glass in mirrors is to keep the silver (or aluminum) coating perfectly flat.
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