Problem 3i
Page 295
Section: Problems by Topic
Chapter 7: The Quantum-Mechanical Model of the Atom
Given information
Given:- a. radio waves b. microwaves c. infrared radiation d. ultraviolet radiation
Arrange all the above radiations in order of increasing wavelengths.
Step-by-step explanation
Electromagnetic radiations are waves with electric and magnetic fields oscillating mutually perpendicular to each other in space. All the electromagnetic waves are characterized by specific wavelengths, frequencies and energies.
Planck's equation gives the mathematical relation between the amount of energy per photon of the electromagnetic radiations and its wavelength.
Planck's equation:
Where,
From Planck's equation, it is evident that there exists an inverse relationship between energy per photon and the wavelength of light. As the wavelength increases, the energy per photon decreases.