Subject :NSO Class : Class 7
In the arrangements I and II shown in figure, four pins W, X, Y and Z are fixed to a metal loop and metal rod with the help of wax. Loop and rod are made of same material and equal thickness. Which set of pins will fall simultaneously? (r is the radius of the loop.)
AY and Z only
BW, X and Y only
CW and X only
DW, X, Y and Z