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Answer the following.
An equiconvex lens forms a full size magnified image of a candle flame on a screen. How will this…
An equiconvex lens forms a full size magnified image of a candle flame on a screen. How will this image change, if at all, when the lens is cut horizontally into two equal parts and only one of them is used? Explain.
Answer
Answer
AIThe nature, size, and position of the image will remain completely unchanged because cutting the lens horizontally does not change its radius of curvature or focal length. However, the brightness (intensity) of the image will be reduced to half because the aperture area is halved, collecting only half the light.
From ISC 2027 Specimen Physics Paper 1, question 15(i).