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
    Focal length of a lens is 50 cm. Its power would be

    A)  50 dioptres       

    B)         2 dioptres  

    C)  20 dioptres       

    D)         None of these

    Correct Answer: B

    Solution :

    Not Available


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