12. Design a mirror arrangement so that light from a laser pointer will travel in exactly the opposite direction after it reflects off the mir- ror(s), even if you change the direction the laser pointer is pointing.
12. Design a mirror arrangement so that light from a laser pointer will travel in exactly the opposite direction after it reflects off the mir- ror(s), even if you change the direction the laser pointer is pointing.
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from a laser pointer will travel in exactly the
opposite direction after it reflects off the mir-
ror(s), even if you change the direction the
laser pointer is pointing."
Transcribed Image Text:12. Design a mirror arrangement so that light
from a laser pointer will travel in exactly the
opposite direction after it reflects off the mir-
ror(s), even if you change the direction the
laser pointer is pointing.
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