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2 cards from this section. Quick, good the night before a test.
What is needed for us to see an object clearly?
Think about what happens in a dark room.
Define lateral inversion in the context of mirrors.
Consider how your reflection looks compared to you.
What is the angle of incidence equal to?
Remember the 'I equals R' concept.
True or False: The image formed by a plane mirror is real.
Think about how mirrors work.
If two mirrors are set at an angle of 45 degrees and a beam of light hits the first mirror at an angle of 30 degrees, what will be the angles of reflection at both mirrors?
Apply the law of reflection.
How can we demonstrate that light travels in straight lines using shadows?
Think about how shadows are formed.
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