Light from a chromatic light source strikes a surface. Seventy percent of the light is reflected and 30% is absorbed. a. What percentage of the light incident on the surface is transmitted? b. What are the reflectance, absorptance, and transmittance values? c. In your opinion, is the surface receiving the light or dark in color? d. Is the surface translucent or opaque?

Light from a chromatic light source strikes a surface. Seventy percent of the light is reflected and 30% is absorbed. a. What percentage of the light incident on the surface is transmitted? b. What are the reflectance, absorptance, and transmittance values? c. In your opinion, is the surface receiving the light or dark in color? d. Is the surface translucent or opaque?

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter11: Temperature And Temperature- Related Variables In Engineering

Section: Chapter Questions

Problem 34P

See similar textbooks

Similar questions

Application of Differential Equations (Show complete solution.) A certain type of glass is such that a slab 1" thick absorbs one-quarter of the light which starts to pass through it. How thin must a pane of be made to absorb only 1% of the light?
Briefly explain all the three key aspects of architectural lighting and cite its importance. Aesthetic Function Efficiency
Reflection on Smart Hard Hat in Construction
3.) A classroom is 30 ft by 30 ft with a 12 ft ceiling. You want to determine the average illuminance on the floor from recessed luminaires. What is the RCR value that you will use to determine the appropriate luminaire CU? RCR =
4. Assume that half of the light emitted by a 100 W incandescent lamp (1750 lumens) illuminates a 100 ft2 surface. a. Determine the average illuminance of the surface in foot-candles. b. Determine the average illuminance of the surface in lux. c. What would the average illuminance be if only half of the light illuminated the surface?
Which of the following statements is/are CORRECT? 1. Transmittance is directly proportional to absorbance. 2. Transmittance is proportional to the analyte concentration. 3. Transmittance is equal to the transmitted light intensity divided by the incident light intensity.
1.) It is the equivalent of 1 lumen distributed uniformly over 1 sqft of surface located 1 ft from a standard candle. 2.) It is the one that produces the sensation of light in the human eye. 3.) It is the amount of light which falls on a 1 sqft of surface area when all points on the surface are 1 ft from a standard candle.
Atmospheric windows are: Select one: O a. It doesn't support EMR Reflection in Passive Remote Sensing O b. None of these options Oc Light in certain wavelength regions can penetrate the atmosphere well. O d. The portion of the atmosphere through which EMR that can be transmitted through the atmosphere 10 PDF étv A APR MacBook Air
e Q2/ Calculate the angle made by beam radiation with normal to a fiat plate collector on December 5, at 9.15 AM. solar time for a location at 28° 35' N. The collector is tilted at an angle of latitude plus 6°, with the horizontal and is pointing due south. Cal NOT :-May be using equations: Z 20 L h L 1- cos OT = cos (-ß) cos 6 cos + sin (4- ß) sin 8- B_ 528
The usual pore size of high-efficiency particulate air filters ( in micrometers)?
Construction materials and methods Chapter 40 34. How does a single-effect water-cooled absorption chiller cool the water for the air-conditioning system?
How does a single-effect water-cooled absorption chiller cool the water for the air-conditioning system?