Of the following,which has the shortest de Broglie wavelength?
A)an airplane moving at a velocity of 300 mph
B)a helium nucleus moving at a velocity of 1000 mph
C)a nitrogen molecule moving at a velocity of 1000 mph
D)a nitrogen molecule moving at a velocity of 5000 mph

Question

Quizplus · Accepted Answer

The de Broglie wavelength is inversely proportional to mass and velocity. Among the given options, an airplane has the largest mass, and therefore it will have the shortest de Broglie wavelength at a velocity of 300 mph.

Of the Following,which Has the Shortest De Broglie Wavelength