A point source is kept at a distance of 1000m has an illumination I. To change the illumination to 16I the new distance should become. A point source is kept at a distance of 1000m has an illumination I. To change the illumination to 16I the new distance should become. November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 28 - Electromagnetic Waves , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related