Q1381
Open questionLens is made up of which glass
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Q1382
Open questionThe final image in a simple microscope is
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Q1383
Open questionWhich microscope is often used to view metal surfaces?
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Q1384
Open questionWhich of the following cannot be used for making lenses?
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Q1385
Open questionThe illuminating powers of two sources are compared by
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Q1386
Open questionRainbow is seen after rain because of hanging molecules of water which act as
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Q1387
Open questionThe information of brilliant colors in a thin soap film is a consequence of the phenomena of
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Q1388
Open questionOptic fibres are used in :
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Q1389
Open questionPurpose of an optical filter is to
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Q1390
Open questionParabolic mirrors are used in
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Q1391
Open questionFibre optics work on the principle of
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Q1392
Open questionWhat is colour of light related to ?
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Q1393
Open questionThe redness in atmosphere at Sunrise and Sunset is due to :
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Q1394
Open questionThe sky appears blue due to
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Q1395
Open questionWhat is a compound microscope?
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Q1396
Open questionWhich one of the following is used for sun glasses ?
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Q1397
Open questionInstrument for measuring blueness of the sky or ocean is called ________
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Q1398
Open questionPhotosynthesis takes place faster in
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Q1399
Open questionIn a bipolar junction transistor
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Q1400
Open questionAddition of suitable impurities into semiconductor, is called
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