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A paper - with two marks having separation d - isheld normal to the line of sight of an observer at adistance of 50mThe diameter of the eye-lens of theobserver is 2 mmWhich of the following is the leastvalue of d - so that the marks can be seen as separate?The mean wavelength of visible light may be taken as5000 Ã…[2002]

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A paper - with two marks having separation d - isheld normal to the line of sight of an observer at adistance of 50mThe diameter of the eye-lens of theobserver is 2 mmWhich of the following is the leastvalue of d - so that the marks can be seen as separate?The mean wavelength of visible light may be taken as5000 Ã…[2002]






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