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).

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

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

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation