
May
06
You are standing with a mirror at the center of a large circular clock face that is resting on the ground...?
by jerseyshore man | Posted in Physics
Someone at 12 o' clock shines a trestle of light towards you, and you want to use a mirror to reflect the beam toward an observer continued at 5 o' clock. What should be the angle of incident to achieve this?
see slant between lines joining 12 o clock and 5 o clock is 150 degres
so be after = 150\2 = 75 degrees
answer is D
Did that help u ???
Mar
03
What should the angle of reflection be?
by Hitler-Girl | Posted in Physics
Take for granted you are holding a flat mirror and standing at the center of a giant clock visage built into the floor. Someone standing at 12 o'clock shines a board of light toward you, and you want to use the mirror to reflect the beam toward an observer ongoing at 5 o'clock.
75 degrees.
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