On 20 July 2017, Lok Sabha passed IIITPPP Bill, 2017. The Bill seeks to allow 15 IIITs established on a PPP model to grant degrees. What does ‘PPP’ stand for?
Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre?