Chapter 5.1, Problem 8SSC

Interpretation Introduction

Interpretation:

Dual nature of light needs to be compared.

Concept introduction:

Light have particle as well as wave nature.

The similar duality must be true for matter. Thus an electron, behaves both as a material particle and as a wave.

According to de − Broglie, the wavelength of a particle with mass m is related to its velocity as follows:

$\lambda =\frac{h}{mv}$

Here, h is Planck’s constant, m is mass and v is velocity.

Answer to Problem 8SSC

Black body radiation and photoelectric effect explain the particle nature of light

Interference and diffraction explain wave nature of light

Explanation of Solution

Particle Nature of Light		Wave Nature of Light
1	Black body radiation and photoelectric effect explain the particle nature of light Black body: When a black body absorbs or emits radiation then this absorption is not continuous but it is as small discrete energy packets which is quantum.	Interference and diffraction explain wave nature of light

Conclusion

Electromagnetic theory and de-Broglie equation explain the dual nature of light