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Magnifying Power of a Simple Microscope is Inversely Proportional to the Focal Length of the Lens. What Then Stops Us from Using a Convex Lens of Smaller and Smaller Focal Length and Achieving Greater and Greater Magnifying Power? - Physics

Magnifying power of a simple microscope is inversely proportional to the focal length of the lens. What then stops us from using a convex lens of smaller and smaller focal length and achieving greater and greater magnifying power?

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Solution

The focal length of a convex lens cannot be decreased by a greater amount. This is because making lenses having very small focal lengths is not easy. Spherical and chromatic aberrations are produced by a convex lens having a very small focal length.

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APPEARS IN

NCERT Class 12 Physics Textbook
Chapter 9 Ray Optics and Optical Instruments
Q 32.3 | Page 349
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