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16. Watter een van die volgende stellings is vals aangaande 'n konkaallens wanneer 'n voorwerp voor die lens geplaas word? (3) Which one of the
16. Watter een van die volgende stellings is vals aangaande 'n konkaallens wanneer 'n voorwerp voor die lens geplaas word? (3) Which one of the following statements is false concerning a concave lens when an object is positioned in front of the lens? (3) Die beeld is altyd virtueel. A. The image is always virtual. B. Die beeld is some rebel. The image is sometimes real. C. Die beeld is altyd regop relatief tot die voorwerp. The image is always upright relative to the object. D. Die beeld is altyd verklein. The image is always smaller than the object. E. Die beeld is altyd nader aan die lens as die voorwerp. The image is always closer to the lens than the object. 17. Watter een van die stellings aangaande 'n kamera lens, soos dit gebruik word in 'n kamera, is waar? (3) which one of the following statements concerning a camera lens, as it is used inside a camera, is true? (3) Afhangende van die voorwerpafstand, is die beeld soms rebel. A. Depending on the object distance, sometimes the image is real. B. Die vergroting is altyd minder as een wanneer die beeld regel is. When the image is real, the magnification is always less than one. C. Die beeld is soms regop relatief tot die voorwerp. The image is sometimes upright relative to the object. D. Die beeld is reeel slegs wanneer die voorwerpafstand kleiner as die brandpuntafstand is. The image is real only when the object distance is smaller than the focal length E. Die voorwerp is altyd nader aan die lens as die beeld. The object is always closer to the lens than the image. 18. Watter een van die volgende stralediagramme verteenwoordig die vorming van die beeld deur die konveklens die beste? (2) Which one of the following ray diagrams best represents the image formation through the convex lens? (2) A. voorwerp/object lens B C. D. E. geen van bogenoemde nie / none of the above
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