12th Class Physics Ray Optics Question Bank Ray Optics Conceptual Problems

  • question_answer
    What are the purposes of using optical instruments?

    Answer:

                     The purposes of using optical instruments are:     (i) to form the images of close lying objects at  the least distance of distinct vision. (ii) to increase the visual angle and hence to  obtain  magnification. (iii) to improve the resolving power of the eye.


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