Topic:
Apparent Brightness
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Apparent Brightness
Answers to Common Questions
A flashlight is the same absolute magnitude if it is 0.01 m from your eye as it is when it is 10 meters from your eye. The apparent brightness is decreased with the added distance. Brightness or apparent magnitude falls off as the square of...
A star's apparent brightness is measured by its distance from Earth, the star's apparent magnitude, and how much the star's light is altered as it passes through the Earth's atmosphere.
Geez, this is a lousy question. Not your fault, I suppose. Don't get in trouble quoting me to your teacher. I've alwasy been a stickler about the writing of questions for school. c) and d) are saying essentially the same thing. They're BOTH...
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Answers to Other Common Questions
Actually the correct answer is B. The apparent brightness decreases as the distance increases, in an inverse square manner. The absolute (or intrinsic) brightness does not change with distance.
http://answers.yahoo.com/question/index?qid=20081204151...
For historical reasons, the ratio of brightness that represents a change of 1 visual magnitude is defined as the 6 th root of 100. So the ratio of brightness between two stars whose apparent visual magnitudes differ by 1 is 2.154 (rounded)....
http://wiki.answers.com/Q/How_does_the_apparent_brightn...
Yes, some of these terms are indeed related to each other, although they are not all exactly the same.
http://www.phy.duke.edu/courses/055/faqs/faq16/faq16.ht...
My guess is not. Typically they're intended for reef tanks and designed to simulate the bluish appearance that sunlight has from very deep under the water. Either way, actinic lights don't have a place in planted tanks. They do practically ...
http://www.plantedtank.net/forums/lighting/19467-does-a...
Repeat looking through the colored filters until you have tried them all. While you are doing this, it may be helpful to make a table of your findings so that you can compare the effects from each different colored filter.
http://www.lbl.gov/MicroWorlds/Kevlar/KevClue5Act1.html
Bright uniformity errors also appear in monochrome LCD panels. In most cases, the monochrome LCD panel does not contain a color filter like with color LCDs, and this is the only difference. Therefore, characteristics of such uniformity erro...
http://www.radiforce.com/en/support/faq03.html
No, not really. I was no good at all until I got into the Fourth Grade, and then when I got into the Fifth Grade, suddenly five child ... boys finished equal first and somehow my name was there. Nobody got as much of a shock as I did. And a...
http://www.australianbiography.gov.au/subjects/santamar...
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