97. biconvex lens made of glass (n = 1,5) has a refractive power D = 4 D. When it is immersed in the liquid (n1 = 1,7) the lens acts as a diffuser. Define: 1) the optical power of the lens in the liquid; 2), the focal length of the lens in the liquid; 3) position of the image point on the main optical axis by a distance of three foci of the lens (a = 3f), for collecting lens and the diverging lens. Build the image of a point in both cases.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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