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    http://filestore.aqa.org.uk/subjects...2-QP-JUN12.PDF
    4bi?
    How do i work out that angle?
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    (Original post by Ayaz789)
    http://filestore.aqa.org.uk/subjects...2-QP-JUN12.PDF
    4bi?
    How do i work out that angle?
    Remember the rules for incidence and reflection and basic trig.

    i.e. the angle of incidence = angle of reflection; internal angles of a triangle sum to 180o.

    All of the information you need is in the diagram.
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    (Original post by uberteknik)
    Remember the rules for incidence and reflection and basic trig.

    i.e. the angle of incidence = angle of reflection; internal angles of a triangle sum to 180o.

    All of the information you need is in the diagram.
    Ohh im so sorry , never realised it was a triangle
 
 
 
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