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What physical law describes the manner in which the intensity of sunlight changes as the observer moves away from the sun?
The Conservation of Energy or power Law. This gives the inverse distance law of Intensity: Intensity on Earth = intensity on sun (radius/sun distance to earth)2 .
How is the intensity of a sound related to the distance between the source and the receiver?
The intensity of a sound will decrease according to an inverse square law.
Is Lambarts' Law related to illumination?
Yes. Lambert's law is a cosine function describing reflected light intensity. In practical terms it means you see maximum light intensity when you look head on at something, but the intensity drops off as you move to one side or the other. A graph of the rate at which it drops off mimics the cosine graph.
How does intensity vary with distance from the source?
It's an inverse-square law - for instance, double the distance, and the intensity will be reduced by a factor 1/4.This assumes that there is nothing absorbing the light (for instance, fog); if there is, the intensity in the above example will of course be even less than 1/4 the original intensity.
What effects does law sunlight intensity have an algae and other water plants?
"http://wiki.answers.com/Q/What_effects_does_law_sunlight_intensity_have_an_algae_and_other_water_plants"
Just noticeable difference is a constant proportion of the intensity of an initial stimulus is this weber's law?
Yes, that's correct. Weber's law states that the just noticeable difference (JND) between two stimuli is proportional to the intensity of the initial stimulus. This means that the difference needed to perceive a change in stimulus intensity remains constant regardless of the initial intensity level.
Does sound Intensity decrease linearly with distance?
No, it follows the inverse square law. That is, the intensity is inversely proportional to the square of the distance. I2/I1 = (r1/r2)². Intensity decreases with 1/r² from increased distance, while the sound pressure decreases only with 1/r from increased distance.
What does Weber's law refers to?
Weber's law, also known as the Weber-Fechner law, states that the just noticeable difference between two stimuli is proportional to the magnitude of the stimuli. In other words, the difference threshold increases as the intensity of the stimulus increases. This law is often used to study perception and how we detect differences in stimuli.
What is the inverse square law of sound?
The inverse square law 1/r2 shows the distance performance for sound intensity, an energy quantity.But your ear drums are moved by the sound pressure vibrations using the inverse distance law 1/r for field quantities.Scroll down to related links and look at "Sound pressure pand the inverse distance law 1/r".Scroll down to related links and look at "Decreasing of Sound Intensity from a Point Source - Inverse square law of sound".
Why intensity decreases as distance from the light source increase?
intensity increases as distance decreases. you cant explain that. scources- bill o'reily
By what factor will the sound of a source change the intensity of the waves if the distance is tripled from the sound source?
For sound intensity (acoustic intensity) we use in the free field (direct field) the inverse square law = 1/r². I1 and r1 belong to the close distance and I2 and r2 belong to the far distance.I2 = I1 * (r1/r2)²I2 = I1 * (1/3)² = I1 / 9Three times farther away gives one ninth the sound intensity of the close sound intensity.
The sound of a bullfrog attracts a mate How much quieter is the sound if the mate is 4 times further away if the sound follows the inverse square law?
Well, it has to follow the inverse square law, so that as distance increases, the sound intensity drops by the square of the proportionate change in distance. The intensity will be 1/16 at 4 times the distance.
