1+1<1 - MATHS MODEL
Description: This instrument is designed in such a way that it has two cylinders top one - solid metal and the down one - hollow cyclinder, first the top cylinder is lifted and left to fall freely, now our mind presume that the weight of next cylinder is also the same as first one hence it will apply equal amount of force to lift both the cylinders together, as the second cylinder is less in weight will get lifted every easily and quickly which is a classical example for perception.
Recommended Class: 6th, 7th, 8th, 9th