Physics - Single MCQs (Page 37)

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Q361. A lens, which is thicker at the center and thinner at the edges is called?...Q362. The electrical signals change into light signals for transmission through optica...Q363. There is no noticeable boundary between core and cladding?...Q364. Critical angle is that incident angle in denser medium for which angle of refrac...Q365. Which one type of fibre is more suitable for transmission of signals in which wh...Q366. Light signals passes through multimode graded index fibre due to?...Q367. Dispersional effect may produce error in light signals. This type of error?...Q368. In multimode step index fibre the refractive index of core and cladding is?...Q369. For normal adjustment, length of astronomical telescope is?...Q370. Final image produced by a compound microscope is?...