+1-415-670-9189
info@expertsmind.com
Foot-candles measure incident light
Course:- Other Subject
Reference No.:- EM13298457




Assignment Help
Assignment Help >> Other Subject

Ture or False.

1. Lumen refers to the quantity of light that is given off in all directions by the lamp itself.

2. Lumens are never compared to watts.

3. Cndlepower describes the amount of light given off in a particular direction.

4. Candela is the measurement applied to the light issuing from a lighting fixture.

5. The light falling on a target is called incident light.

6. Foot-candles measure incident light.

7. Light that is reflected from an object is measured in footlamberts.

8. Extreme contrasts in brightness can cause temporary eyestrain.

9. Contrasts in brightness are not essential to the process of seeing

10. When contrast in brightness is so great that is causes loss in visual performance, it is called glare.




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Other Subject) Materials
About 2% of our solar nebula consisted of elements besides hydrogen and helium. However, the very first generation of star systems in the universe probably consisted only of h
Brief description of the theory's origin (background, how was it developed, who created it) and basic philosophies (its view of human nature, theory of change, view of psyc
Review one (1) transnational crime.Compare and contrast the two (2) countries for their definition of the crime, crime rate, and tools used to measure the crime.Determine each
Write equations that show the acid-base reactions that occur under the extraction conditions for both aspirin and acetaminophen. Assume that the base in teh phopshate extracti
Identify the pros and cons of the issue. Use at least four references from academic journals. Explain your position on this issue and how you arrived at it. Describe the proce
In preparing for the first day of a new school year, you decide to create either informational literature (like a brochure or double-sided flyer) or a classroom website expl
A drinking water production system receives water from a reservoir. This water contains 0.005 g/L Ca(OH)2. To reduce the “hardness” of the water, it is mixed with a stream of
Discuss the problems faced by today's police departments that were also present during the early days of policing.Distinguish between the duties of the state police, sheriffs'