Although solid matter is mostly empty space, we don't fall through the floor because atoms are constantly vibrating, even at absolute zero. of electrical forces. of gravitational forces. of nuclear forces. none of the above

None of these forces contribute for these vibrations

Explanation:

The atoms or molecules of the solid substance vibrate at zero degree absolute even, due to kinetic energy of the constituent atoms or molecules.

According to Kelvin, the kinetic energy of these particles should become zero at absolute zero.

But it is found by actual calculations that the kinetic energy of constituent atoms or molecules does not become zero.

Thus all the above forces are not considered as the main cause of these vibration.