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Sahay Sir > Question Answers > AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 16 - Waves > A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become.

A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become.

A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become.