For the following questions answer them individually
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?
According to the Hornbostel-Sachs system of Indian Musical Instruments, Ghungroo can be classified as
What is the minimum age to become the Prime Minister of India if he or she is a member of Rajya Sabha?