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JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Communication

  • question_answer
    A laser beam is used for carrying out surgery because it  [AIIMS 2003]

    A)            Is highly monochromatic

    B)            Is highly coherent

    C)            Is highly directional           

    D)            Can be sharply focussed

    Correct Answer: D

    Solution :

               Surgery needs sharply focused beam of light and laser can be sharply focused.


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