Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the figure below. What type of radiation corresponds to the peak in the figure? Choose one: A. visible light B. infrared C. X-rays D. ultraviolet

Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the figure below. What type of radiation corresponds to the peak in the figure? Choose one: A. visible light B. infrared C. X-rays D. ultraviolet

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.23PAE

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Concept explainers

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

Question

Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the figure below.

What type of radiation corresponds to the peak in the figure?

Choose one:

A. visible light

B. infrared

C. X-rays

D. ultraviolet

What is the energy of a photon that has a wavelength corresponding to the peak in the figure?
Planck's constant is h = 6.626 ×× 10^–34 J • s, and the speed of light is c = 3.00 ×× 10⁸ m/s.
kJ

1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
700
850
1000 1050 1100
750
800
900
950
A (nm)
Intensity

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