The ration of de Broglie wavelentghs of a deuterium atom to that of an a-particicle,when the velocity of the former is five times greater than that of later is………….

The ration of de Broglie wavelentghs of a deuterium atom to that of an

1.	The ration of de Broglie wavelentghs of a deuterium atom to that of an a-particicle,when the velocity of the former is five times greater than that of later is………….
Answer» 4 0.2 2.5 0.4 Answer :D