2. Questions Bank
  3. 10th Class
  4. Science
  5. Light - Reflection and Refraction

10th Class Science Light - Reflection and Refraction Question Bank Light

  • question_answer
    The focal length of a lens \[-\text{ }0.\text{4 m}\]is. The lens is

    A)  convex

    B)  concave

    C)  cylindrical  

    D)  none of these

    Correct Answer: C

    Solution :

    Not Available


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