Chemistry In Focus
6th Edition
ISBN: 9781305084476
Author: Tro, Nivaldo J., Neu, Don.
Publisher: Cengage Learning
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Textbook Question
Chapter 7, Problem 17E
Describe how a laser works.
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7. Light bouncing off the bright concrete on a sunny day
a.) Reflection
b.) Refraction
c.) Absorption
how uv-vis work?
This are substances that absorbs short wavelength light (ultraviolet range) and then reemit the absorbed energy in the form of longer wavelength light (visible spectrum).
a. Water
b. Acid
c. Base
d. Fluorophore or fluorochromes
Chapter 7 Solutions
Chemistry In Focus
Ch. 7 - Prob. 7.1YTCh. 7 - The lasers used in supermarket scanners emit red...Ch. 7 - Which photons contain more energy, X-ray photons...Ch. 7 - Arrange the kinds of light listed below in order...Ch. 7 - Prob. 1ECh. 7 - What kinds of molecules are responsible for the...Ch. 7 - Prob. 3ECh. 7 - Prob. 4ECh. 7 - What is the relationship between the wavelength of...Ch. 7 - Prob. 6E
Ch. 7 - Prob. 7ECh. 7 - What prevents large amounts of high-energy UV and...Ch. 7 - Prob. 9ECh. 7 - Prob. 10ECh. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Prob. 14ECh. 7 - Prob. 15ECh. 7 - Prob. 16ECh. 7 - Describe how a laser works.Ch. 7 - Classify each of the following lasers as to type...Ch. 7 - Prob. 19ECh. 7 - Prob. 20ECh. 7 - Prob. 21ECh. 7 - Prob. 22ECh. 7 - Prob. 23ECh. 7 - The speed of sound is 330m/s. If fireworks are...Ch. 7 - The nearest star, Alpha Centauri, is 4.3 light-...Ch. 7 - Counting the seconds between a flash of lightning...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Prob. 29ECh. 7 - Arrange the following three frequencies of light...Ch. 7 - Prob. 31ECh. 7 - Which wavelength of light is most likely to cause...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - Prob. 35ECh. 7 - Prob. 36ECh. 7 - Prob. 37ECh. 7 - Prob. 38ECh. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Prob. 41ECh. 7 - Prob. 42ECh. 7 - Prob. 43ECh. 7 - A lamp emits red light of 671nm. What element is...Ch. 7 - Prob. 45ECh. 7 - Prob. 46ECh. 7 - Prob. 47ECh. 7 - Prob. 48ECh. 7 - Describe how white light interacts with a colored...Ch. 7 - Prob. 50ECh. 7 - Prob. 51ECh. 7 - Prob. 52ECh. 7 - Prob. 53ECh. 7 - Prob. 54ECh. 7 - Prob. 55ECh. 7 - Prob. 56ECh. 7 - Prob. 57ECh. 7 - Prob. 58ECh. 7 - Prob. 59E
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- Explain why X-ray lasers would be extremely difficult to build.arrow_forward3) Explain how the market for opticians is affected as a result of the development of laser technology which reduces the demand for glasses and contact lenses. In your explanation be sure to show the connection between the market for glasses and contact lenses and the market for opticians.arrow_forwardwhat are the factors affecting scattering of light?arrow_forward
- 5. Light waves slowing down through medium to form a rainbow a.) Reflection b.) Refraction c.) Absorptionarrow_forwardIn which region of the electromagnetic spectrum does an absorption at 600 nm come? A. Infrared B. near UV C. Visible D. vacuum-UVarrow_forwardWhat are some examples of fluorescent light and incandescent light?arrow_forward
- During this practical, we will be measuring the absorbance of Bromocresol green combined with albumin using a spectrophotometer. At what wavelength will we make this measurement?Question 3 Select one:a.320 nmb.400 nmc.628 nmd. 595 nme. 511 nmarrow_forwardElliptical cavity is used in Nd:YAG laser to provide better absorption of incident light. Explain . 2) In a coherent state all photons condense into one state . Explain.arrow_forwardSunburn is caused by ultraviolet UV radiation. Why does red light not cause sunburn?arrow_forward
- What prevents large amounts of high-energy UV and X-ray light from reaching Earths surface, where it can adversely affect humans?arrow_forwardWould the light from fireflies be considered an example of a fluorescence or a phosphorescence process?arrow_forwardThe speed of sound is 330m/s. If fireworks are 1.5km away, what is the length of the time delay between seeing the fireworks explode and hearing the sound?arrow_forward
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