Math Is Fun Forum
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#1 2011-01-29 23:14:17
How much does the reflected ray rotate?
Keeping the incidence ray fixed, if a plane mirror is rotated through an angle "x" about an axis lying in its plane, the reflected ray turns through an angle __________ .
Tell me how you did the calculation also!
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#2 2011-01-29 23:25:43
- gAr
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- Registered: 2011-01-09
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Re: How much does the reflected ray rotate?
Hi,
The reflected ray turns through an angle 2x. (angle of incidence = angle of reflection. When mirror is turned through an angle x, angle of incidence becomes x)
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
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#3 2011-01-29 23:30:34
Re: How much does the reflected ray rotate?
can u show me through images
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#4 2011-01-29 23:35:28
- gAr
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- Registered: 2011-01-09
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Re: How much does the reflected ray rotate?
http://www.splung.com/content/sid/4/page/planemirrors
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
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