The wave of photons of greater energy, the wave which delivers more photons during a given period of time and the wave which delivers more total energy during a given time period in electromagnetic radiation of the given two waves having two different frequencies and two different amplitudes should be described using the relation between speed, wavelength and frequency of a wave. Concept Introduction: A wave is a disturbance or variation that travels through a medium transporting energy without transporting matter. The wavelength is the distance between identical points on successive waves. The frequency is the number of waves that pass through any particular point in 1 second. Figure 1 The speed, wavelength and frequency of a wave are related by the equation: c = λν where λ and ν are expressed in meters ( m ) and reciprocal seconds ( s − 1 ) respectively. Planck’s quantum theory 1. Different atoms and molecules can emit or absorb energy in discreet quantities only. The smallest amount of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as quantum. 2. The energy of the radiation absorbed or emitted is directly proportional to the frequency of the radiation. The energy of radiation is expressed in terms of frequency as, E = hν Where, E = energy of the radiation; h = Planck’s constant ( 6.626 × 10 – 34 Js ); ν = frequency of radiation.

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Chapter 3.3, Problem 3.3.5SR

Interpretation Introduction

Interpretation:

The wave of photons of greater energy, the wave which delivers more photons during a given period of time and the wave which delivers more total energy during a given time period in electromagnetic radiation of the given two waves having two different frequencies and two different amplitudes should be described using the relation between speed, wavelength and frequency of a wave.

Concept Introduction:

A wave is a disturbance or variation that travels through a medium transporting energy without transporting matter. The wavelength is the distance between identical points on successive waves. The frequency is the number of waves that pass through any particular point in 1 second.

Figure 1

The speed, wavelength and frequency of a wave are related by the equation: c = λν where λ and ν are expressed in meters (m) and reciprocal seconds (s−1) respectively.

Planck’s quantum theory

1. Different atoms and molecules can emit or absorb energy in discreet quantities only. The smallest amount of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as quantum.

2. The energy of the radiation absorbed or emitted is directly proportional to the frequency of the radiation. The energy of radiation is expressed in terms of frequency as, E = hν Where, E = energy of the radiation; h = Planck’s constant (6.626 × 10–34 Js); ν = frequency of radiation.

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