Chapter 7, Problem 1QC

Interpretation Introduction

Interpretation:

The concept of light is to be discussed

Concept Introduction:

Light is an electromagnetic radiation that displays both - particle and wave behavior. It exists as discrete packets called photons. The energy of each photon is calculated using the equation:

$E=\text{h}v$

Here, $E$ is the energy of the photon, $\text{h}$ is Planck’s constant, and $v$ is the frequency.

Explanation of Solution

The electromagnetic spectrum includes different radiations that are categorized on the basis of their frequency, energy and wavelength.

The light that a human eye can detect occupies a small part in the electromagnetic spectrum called the visible region.

The electromagnetic spectrum is shown below

Visible light is a mixture of different radiations with different wavelengths corresponding to different colors which are as follows (in increasing order of wavelengths):

VIBGYOR - Violet, Indigo, Blue. Green. Yellow, Orange and Red

The white light is a mixture of all these radiations.

Conclusion

Light is a form of energy that can be characterized based on its properties like wavelength and frequency.