Chapter 38, Problem 11A

(a)

To determine

Whether the particles of matter have wave properties.

Explanation of Solution

Introduction:

The particle behaves like wave if the dimension of the particle and speed of the particle become measurable.

The small particles like electron, proton or neutron have the measureable wavelength and the electron beam behaves like the light wave.

Conclusion:

The particles of the matter have the wave properties.

(b)

To determine

The name of the first physicist who proposed the wave theory.

Explanation of Solution

Introduction:

The particle have the wave nature as well as particle nature.

The first physicist to convincingly answer this question was Louis de Broglie, who came up with a formula to determine the wavelength of a particle.

Conclusion:

The first physicist to convincingly answer this question was Louis de Broglie.