a convex lens of power 4d is placed at a distance of 40cm

power 4dA convex lens of power + 6D is placed in contact with a concave lens of power – 4D. What is the nature and focal length of the combination. see full answer. Start JEE NEET FoundationCheck out the latest Sports Toto Malaysia 4D results ! Sports Toto Malaysia is a lottery company and has over 680 outlets operating throughout the country. They offer 8 games