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The amplitude of a wave from a point source decreases as the inverse square of the distance fron the source?
Wiki User
∙ 14y ago
yes... its true...the inverse square law is universal. it can be applied to gravity between two objects, the electric force between 2 charges etc...
Wiki User
∙ 14y ago
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What does the inverse square law state?
any physical law stating that some physical quantity or strength is inversely proportional to the square of the distance from the source of that physical quantity.
What is inverse square law and an example?
inverse square law is the law that states the intensity of the light, sound etc is directly proportional to 1/ distance squared meaning the further you are from the source the less intense the light etc will be. e.g. an object 1m away from a light source 1/1^2=1 , 2m 1/2^2= 1/4 and so forth
To what is the illumination of a surface by a light source directly proportional?
The illumination on the surface would be reduced by a factor of four, thereforeif the distance from a light source is doubled, the illumination provided by the source is one fourth as great.
How much weaker will a sound be at a distance of 2 meters from the source compared to its intensity at 1 meter?
Yes, it will be!
What are applications of space vector modulation?
Because there's sparking in DC motors, they are inherently less efficient than say AC motors are, The trick with AC motors is that they run primarily at the frequency of their power source. What happens when the power source can change it's frequency and amplitude? The motor can behave as well as any DC motor.
How does the amplitude of the resulting wave disturbance vary with the distance from the source?
The amplitude of the resulting wave disturbance generally decreases with distance from the source. This is due to energy spreading out over a larger area as the wave travels further, resulting in a reduction in the intensity of the wave. The relationship between amplitude and distance can be described by the inverse square law.
How is the intensity of light and distance related?
The intensity of light decreases as distance from the source increases. This relationship follows an inverse square law, meaning that if you double the distance from the source of light, the intensity decreases by a factor of four.
How does distance affect intensity?
Distance affects intensity by following the inverse square law, which states that as distance from a source increases, the intensity of the source decreases by the square of the distance. This means that the further you are from a source of intensity, the weaker the intensity will be.
Why does intensity decreases as the distance from the light source increases?
Intensity decreases as the distance from a light source increases due to the spreading out of light waves over a larger area. This leads to light being more dispersed and less concentrated at a greater distance from the source. The inverse square law dictates that the intensity of light decreases proportionally to the square of the distance from the source.
What is the relation between power and distance?
Power is inversely proportional to distance. As distance from a power source increases, power dissipates or decreases. This relationship is described by the inverse square law, which states that the intensity of power decreases by the square of the distance.
What causes the intensity of sound vibration amplitude?
The intensity of sound vibration amplitude is primarily influenced by the strength of the sound source and the distance from the source. As sound travels further from the source, the amplitude decreases due to spreading out of the energy. Additionally, the medium through which the sound is traveling can affect its intensity.
How is distance related to a electric field strength?
The electric field strength decreases with increasing distance from the source of the field. This relationship follows an inverse square law, meaning that the field strength is inversely proportional to the square of the distance from the source. In other words, as the distance from the source doubles, the electric field strength decreases by a factor of four.
Intensity decreases when?
Intensity decreases when the energy of the wave is spread out over a larger area or when the amplitude of the wave decreases. This can happen due to factors such as distance from the source, absorption by the medium, or the spreading out of the wave as it propagates.
If sound waves travel away from there source there what decreases?
As sound waves travel away from their source, the intensity (loudness) of the sound decreases due to the spreading out of the energy over a larger area. This phenomenon is known as the inverse square law, where the intensity decreases proportionally to the square of the distance from the source.
What happens to the amplitude of a wave as it moves away from its source?
The amplitude of a wave typically decreases as it moves away from its source. This is due to the spreading out of the wave energy over a larger area as it propagates. Factors such as distance, intervening materials, and absorption can also affect the amplitude of the wave.
What is the relationship between the distance from the source and loudness?
The relationship between distance from the source and loudness is that as distance increases, the sound intensity decreases, resulting in lower perceived loudness. This follows the inverse square law, meaning that the sound intensity is inversely proportional to the square of the distance from the source.
If the distance from the light source is tripled how much does the light intensity change?
The light intensity decreases by a factor of nine when the distance from the light source is tripled. This relationship is governed by the inverse square law, which states that the intensity of light is inversely proportional to the square of the distance from the source.
