2. Questions Bank
  3. 10th Class
  4. Science
  5. Human Eye and Colourful World

10th Class Science Human Eye and Colourful World Question Bank Human Eye and Colourful World

  • question_answer
    An old person is unable to see clearly nearby objects as well as distant object. To correct the vision, what kind of lens will he require?                            

    A) Concave lens                   

    B) Bifocal lens whose upper portion is concave lens and lower portion is convex lens.                     

    C) Convex lens                    

    D) Bifocal lens whose upper portion is convex lens and lower portion is concave lens.

    Correct Answer: B

    Solution :

    The upper portion (concave lens) facilitates distant vision and the lower portion (convex lens) facilitates near vision.


You need to login to perform this action.
You will be redirected in 3 sec spinner