Question

Wave-particle duality tells us that wave and particle models apply to all objects whatever the size, so why don't we observe wave properties in macroscopic objects?

Because their particle properties forbid us from observing their wave properties.

Because their wavelength is extremely long (undetectable).

Because their wavelength is extremely short (undetectable).

Answer 1

Explanation :

Wave-particle duality tells us that wave and particle models apply to all objects.

We know that the De Broglie wavelength is given by :

`\lambda=(h)/(p)`

Where,

h is the Planck's constant

and p is the momentum.

For macroscopic objects, the mass of the object is more as compared to microscopic objects.

There is an inverse relationship between the momentum and the wavelength. So, the wavelength of macroscopic objects is short.

So, we do not observe wave properties in macroscopic objects because their wavelength is extremely short (undetectable).

Answer 2

The correct choice is Because their wavelength is extremely short (undetectable).

Step-by-step explanation:

Wave particle duality is the concept in quantum physics that every particle or quantum may be partly described in terms not only of particles, but also of waves. Today, physicists accept the dual nature of light. They say that the light waves are actually packets of photons travelling closely. So on the basis of this concept we can consider particles as waves too but the wavelength of these waves are too short to be measured that is why we cannot observe wave properties in macroscopic objects