According to the inverse square law of light, how will the apparent brightness of an object...
According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us doubles?
Its apparent brightness will decrease by a factor of 4.
Its apparent brightness will increase by a factor of 2.
Its apparent brightness will remain the same.
Its apparent brightness will decrease by a factor of 2.
Its apparent brightness will increase by a factor of 4.
CHOOSE ONE
Homework Answers
Inverse square law of light states that an objects apparent brightness depends on its actual luminosity and the inverse square of its distance from the observer.
Apparent brightness is inversely proportional to square of distance so if the distance is then square of double distance will be 4
So if the distance increases then the apparent brightness will decrease by factor 4 because it is inversely proportional.
So option A is the correct statement.
Add Answer to:
According to the inverse square law of light, how will the
apparent brightness of an object...
Problem 22.52-Copy Part A ReviewI Constants Periodic Table Using the inverse square law for light from...
Problem 22.52-Copy Part A ReviewI Constants Periodic Table Using the inverse square law for light from Mathematical Insight 15.1 in the textbook, determine the apparent brightness of the Sun in our sky. Express your answer to two significant figures and include the appropriate units. According to Olbers' paradox, the entire sky would be as bright as the surface of a typical star if the universe were infinite in space, unchanging in time, and the same everywhere. However, conditions would not...
Experiment 2: Inverse Square Law The inverse square law is a concept that comes up in...
Experiment 2: Inverse Square Law The inverse square law is a concept that comes up in several areas of physics. This experiment does not demonstrate how gravity "works,” but it aims to give you a better picture of how the force of gravity diminishes greatly as distance increases. In Figure 6, gravity is represented by the amount of light spread out over an area, A. Figure 6: Inverse square law. "A" represents the original area at distance, d. Note the...
ReviewI ConstantsI Periodic Table Use the inverse square law for light to answer each of the...
ReviewI ConstantsI Periodic Table Use the inverse square law for light to answer each of the following questions Part C Suppose a star has a luminosity of 6.0x1028 watts and an apparent brightness of 2.0x10-12 watt/m2. How far away is i? Give your answer in both kilometers and light-years Express your answer using two significant figures km Submit Part D Express your answer using two significant figures d- light - years Submit Request Answer
This question uses the inverse-square law, which states that the light intensity experienced at a distance...
This question uses the inverse-square law, which states that the light intensity experienced at a distance x from a light source is proportional to the luminosity of the source times x-2. It is the dead of night in Gormenghast Castle, and Steerpike, on the run, is trying to hide in a long, narrow corridor that is dimly lit by two lights, one at each end. (a) Steerpike knows that his best chance of hiding is to be in the spot...
2 A. Rank the bulbs according to brightness B. How will the brightness of bulbs 1...
2 A. Rank the bulbs according to brightness B. How will the brightness of bulbs 1 and 3 change if we unscrew bulb 4? C. Starting from the original circuit, how will the brightness of bulbs 2,5, and 6 change if we add a new bulb by connecting it between points D and E?
pls help hurry pupp! If a galaxy moves away from us 4 times its original distance,...
pls help hurry pupp! If a galaxy moves away from us 4 times its original distance, how would its redshift change? It would remain the same It would increase by a factor of 1/2 It would increase by a factor of 2 It would increase by a factor of ¼ It would increase by a factor of 4 A star that is 100 light years away from us has a luminosity of 1 L_Sun. What would its luminosity be if...
Due to the inverse square law, the image at the margin of the x-ray film will...
Due to the inverse square law, the image at the margin of the x-ray film will be slightly darker than that in the middle. Suppose a chest x-ray projection system has a perfect point source, and the source-detector distance is 2 meters. If we require that the intensity variation across the film (when no object is imaged) must be less than 5%, calculate the largest size of the film that we can use. Suppose a square film
Newton’s Law of Cooling states that the temperature of an object changes in time according to...
Newton’s Law of Cooling states that the temperature of an object changes in time according to the equation dT =k(E−T)dt where T(t) is the temperature of the object, E is the temperature of the environment surrounding the object and k is a constant that is determined by the physical properties of the object. The value k can be expressed as k = hA , ρV cp where h is the heat-transfer coefficient (a measure of how quickly heat escapes the...
Part A Given the following rate law, how does the rate of reaction change if the...
Part A Given the following rate law, how does the rate of reaction change if the concentration of X is doubled? Rate = k[X] [Y] The rate of reaction will increase by a factor of 2. The rate of reaction will increase by a factor of 6. The rate of reaction will increase by a factor of 8. The rate of reaction will decrease by a factor of 2. The rate of reaction will remain unchanged. Submit Request Answer
Choose the best answer below. Given the following rate law, how does the rate of reaction...
Choose the best answer below. Given the following rate law, how does the rate of reaction change if the concentration of X is halved and the concentration of Y is quadrupled? Rate = k[X][Y]3 a The rate of reaction will increase by a factor of 4 b The rate of reaction will increase by a factor of 16 c The rate of reaction will remain unchanged d The rate of reaction will increase by a factor of 32 e The...
Problem 22.52-Copy Part A ReviewI Constants Periodic Table Using the inverse square law for light from Mathematical Insight 15.1 in the textbook, determine the apparent brightness of the Sun in our sky. Express your answer to two significant figures and include the appropriate units. According to Olbers' paradox, the entire sky would be as bright as the surface of a typical star if the universe were infinite in space, unchanging in time, and the same everywhere. However, conditions would not...
ReviewI ConstantsI Periodic Table Use the inverse square law for light to answer each of the following questions Part C Suppose a star has a luminosity of 6.0x1028 watts and an apparent brightness of 2.0x10-12 watt/m2. How far away is i? Give your answer in both kilometers and light-years Express your answer using two significant figures km Submit Part D Express your answer using two significant figures d- light - years Submit Request Answer
This question uses the inverse-square law, which states that the light intensity experienced at a distance x from a light source is proportional to the luminosity of the source times x-2. It is the dead of night in Gormenghast Castle, and Steerpike, on the run, is trying to hide in a long, narrow corridor that is dimly lit by two lights, one at each end. (a) Steerpike knows that his best chance of hiding is to be in the spot...
2 A. Rank the bulbs according to brightness B. How will the brightness of bulbs 1 and 3 change if we unscrew bulb 4? C. Starting from the original circuit, how will the brightness of bulbs 2,5, and 6 change if we add a new bulb by connecting it between points D and E?
Part A Given the following rate law, how does the rate of reaction change if the concentration of X is doubled? Rate = k[X] [Y] The rate of reaction will increase by a factor of 2. The rate of reaction will increase by a factor of 6. The rate of reaction will increase by a factor of 8. The rate of reaction will decrease by a factor of 2. The rate of reaction will remain unchanged. Submit Request Answer
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago