Which of the following describes one of the main features of wave-particle duality?

a. as speed increases, the wave nature matter becomes more evident
b. as momentum decreases, the particle nature of the matter becomes more evident
c. as energy increases, the wave nature of matter becomes easier to observe
d. as mass increases, the wave nature of matter is less easy to observe.

At the beginning of the 20th century the French physicist Louis De Broglie proposed the existence of matter waves, that is to say that all matter has a wave associated with it.

In this sense, the de Broglie wavelength is given by the following formula:

  (1)

Where:

is the Planck constant

is the momentum of the atom, which is given by:

(2)

Where:

is the mass

is the velocity

Substituting (2) in (1):

is inversely proportional to ).

Therefore, if the wavelength decreases the wave nature of matter is less easy to observe.

The other options are incorrect because:

a) as increases decreases and the particle nature matter becomes more evident

b) as decreases increases and the wave nature matter becomes more evident

c) There is also a relation between the wavelength and the energy :

So, as energy increases, the particle nature matter becomes more evident and the wave nature of matter becomes harder to observe

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

small = small current large mag large current