Question

What is the energy of a photon with frequency $1.45 \times 10^{11} \mathrm{Hz} ?$

Name: Problem 9, Chapter 20: Applied Physics
Uploaded: 2021-07-07T22:56:03-08:00
Duration: 1 min 1 s
Channel: Suzanne W.
Description: What is the energy of a photon with frequency 1.45 ×10^11 Hz ?

   What is the energy of a photon with frequency $1.45 \times 10^{11} \mathrm{Hz} ?$

Applied Physics

Dale Ewen, Neill… 10th Edition

Chapter 20, Problem 9

Instant Answer

Solved by Expert Suzanne W.

07/07/2021

Step 1

According to Planck's equation, the energy (E) of a photon is given by the product of Planck's constant (h) and the frequency (ν) of the photon. Mathematically, this is represented as: \[E = h \nu\] Show more…

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What is the energy of a photon with frequency $1.45 \times 10^{11} \mathrm{Hz} ?$

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Key Concepts

Photon

A photon is a fundamental quantum of electromagnetic radiation, representing the smallest discrete amount of energy that can be emitted or absorbed. In quantum mechanics, photons exhibit both wave and particle properties and are the carriers of electromagnetic force.

Planck's Constant

Planck's constant is a fundamental constant in quantum mechanics that relates the energy of a photon to its frequency. It appears in the equation E = h * f, serving as the bridge between the wave-like and particle-like behavior of light and quantizing the electromagnetic energy.

Frequency

Frequency is the measure of how many cycles of a wave occur per unit time, typically expressed in Hertz (Hz). In the context of photon energy, the frequency directly determines the energy of a photon when multiplied by Planck's constant, as described by the quantum relationship E = h * f.

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