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    General
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    Physics-

    A beam of light strikes one mirror of a right angle mirror assembly at an angle of incidence 450 as shown in the figure The right angle mirror assembly is rotated such that the angle of incidence becomes 600 Which of the following statements is (are) correct about the emerging light beam

    Physics-General

    1. It will move through an angle of 150 with respect to the original emerging beam    
    2. it will move through an angle of 300 with respect to the original emerging beam    
    3. it will move through an angle of 450 with respect to the original emerging beam    
    4. it will emerge parallel to the original emerging beam    

      Answer:The correct answer is: it will emerge parallel to the original emerging beam

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