Question

(2) 75. Dioptre is the unit of
(1) Refractive index (2) Focal length (3) Radius of curvature (4) Focal length power of the lens ​

Answer 1

Explanation:

Historiography, the writing of history, especially the writing of history based on the critical examination of sources, the selection of particular details from the authentic materials in those sources, and the synthesis of those details into a narrative that stands the test of critical examination.

Answer 2

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⟹ Most reasonably priced aftermarket speakers will perform well with about 25 watts RMS or about 50 watts max per channel, but try to make sure that your amp's output matches what your speakers can handle. The amp's wattage should match the speaker's capacity and vice versa for optimum performance.

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