Question

 A coin of rupee one is placed on a cardboard. This cardboard along with coin is placed on anempty glass. The coin will fall into the glass if.1 pointA) We strike the coin with a fingerB) We strike the cardboard very slowly with a fingerC) We strike hard the cardboard with a fingerD) We strike the card board with a finger and the coin is glued with the cardboard​

Answer 1

Answer:

c.We strike hard the cardboard with a finger