The near and far points of a person are at 40 cm and 250 cm respectively. Find the power of the lens he/she should use while reading at 25 cm. With this lens on the eye, what maximum distance is clearly visible ?
The near and far points of a person are at 40 cm and 250 cm respectively. Find the power of the lens he/she should use while reading at 25 cm. With this lens on the eye, what maximum distance is clearly visible ?
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Transcribed Image Text:The near and far points of a person are at 40 cm and
250 cm respectively. Find the power of the lens he/she
should use while reading at 25 cm. With this lens on the
eye, what maximum distance is clearly visible ?
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