Two identical solid copper spheres of radius R are placed in contact with each other. The gravitational attraction between them is proportional to Two identical solid copper spheres of radius R are placed in contact with each other. The gravitational attraction between them is proportional to September 14, 2020 Category: Cengage NEET by C.P Singh , Chapter 12 - Gravitation , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related