# The wavelength of cell phone signal has to be calculated. Concept introduction: The frequency of the light is inversely proportional to its wavelength. ν = c λ where, c = speed of light ν = frequency λ = wavelength

### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter 6, Problem 57GQ

(a)

Interpretation Introduction

## Interpretation: The wavelength of cell phone signal has to be calculated.Concept introduction:The frequency of the light is inversely proportional to its wavelength.  ν = cλwhere, c = speed of lightν = frequencyλ = wavelength

(b)

Interpretation Introduction

### Interpretation: The energy per mole of photons of cell phone signal has to be calculated.Concept introduction:Planck’s equation,  E = hν where, E = energyh = Planck's constantν = frequencyThe energy increases as the wavelength of the light decrease. Also the energy increases as the frequency of the light increases.

(c)

Interpretation Introduction

### Interpretation: The energy of violet light is to be compared with 850 MHz cell phone signalConcept introduction: Planck’s equation,  E = hν where, E = energyh = Planck's constantν = frequencyThe energy increases as the wavelength of the light decrease. Also the energy increases as the frequency of the light increases. The frequency of the light is inversely proportional to its wavelength.  ν = cλwhere, c = speed of lightν = frequencyλ = wavelength

(d)

Interpretation Introduction

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