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NEET Sample Paper NEET Sample Test Paper-43

  • question_answer
    A film projector magnifies a \[100\text{ }c{{m}^{2}}\]film strip on a screen. If the linear magnification is 4, the area of magnified film on screen is -

    A) \[1600c{{m}^{2}}\]                

    B) \[400c{{m}^{2}}\]

    C) \[800c{{m}^{2}}\]                  

    D) \[200c{{m}^{2}}\]

    Correct Answer: A

    Solution :

    \[{{A}_{I}}={{m}^{2}}{{A}_{0}}\] \[\therefore \,{{A}_{I}}={{(4)}^{2}}\times 100\] \[\therefore \,\,{{A}_{I}}=1600c{{m}^{2}}\]


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