According to the modern view of quantum mechanics, which objects can act like waves? a) light, but not electrons or atoms b) electrons, but not light or atoms c) light and electrons, but not atoms d) light, electrons, and atoms 6. e) according to quantum mechanics, nothing really acts like waves

The correct option is 'D': Light, electrons and atoms.

Explanation:

According to the basic postulates of quantum mechanics all the moving objects in the universe have a wavelength associated with them which is given by De-Broglie as

where

h is known as planks constant

m is mass of the object

v is the velocity of the object

Thus we infer that all the moving objects with mass have a wavelength associated with them, since the masses and the speeds of ordinary objects are small in comparision to magnitude of plank's constant thus we cannot observe the wavelengths with naked eyes

a and c

c is 100% but i am confused in a

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.