Two parallel pillars are 11 km away from an observer. Find the minimum distance between the pillars so that they can be seen separately. Two parallel pillars are 11 km away from an observer. Find the minimum distance between the pillars so that they can be seen separately. October 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related