Two light sources of intensities 8 cd and 12 cd are placed on the same side of a photometer screen at a distance of 40 cm from it. Where should a 80 c

Two light sources of intensities 8 cd and 12 cd are placed on the same side of a photometer screen at a distance of 40 cm from it. Where should a 80 c
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Two light sources of intensities 8 cd and 12 cd are placed on the same side of a photometer ... 80 cd source be placed to balance the illuminance ?
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Last Answer : Answer. hope this helps you

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