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

  • question_answer
    How is the working of a telescope different from a microscope?

    Answer:

                    Working differences between a telescope and a microscope: (i) A telescope produces high resolution while a microscope produces high magnification. (ii) The objective of a telescope forms the image of a very far off object at, or within, the focus of its eyepiece. The microscope does the same for a small object kept just beyond the focus of its objective. (iii) The final image formed by a telescope is magnified relative to its size as seen by the unaided eye while the final image formed by a microscope is magnified relative to its absolute size. (iv) The objective of a telescope has large focal length and large aperture while the corresponding quantities for a microscope have very small values. (v) In a telescope, the distance between the objective and eyepiece is adjusted to focus the object at infinity. In a microscope the distance between the objective and eyepiece is fixed, the distance of the objective is changed to focus the object.


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