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What is the relationship between the intensity and energy of light?
The relationship between the intensity and energy of light is that the intensity of light is directly proportional to its energy. This means that as the intensity of light increases, so does its energy.
The intensity of light waves is a measure of what?
The intensity of light waves is a measure of the energy carried by the waves. It is proportional to the square of the amplitude of the waves. The intensity of light waves determines how bright the light appears to us.
What happens to the light intensity if you half the distance to the source?
The light intensity increases by a factor of four when you half the distance to the source. This is known as the inverse square law, where light intensity is inversely proportional to the square of the distance from the source.
What is the illumination of a surface by a light source directly proportional?
The illumination of a surface by a light source is directly proportional to the intensity of the light source and inversely proportional to the square of the distance between the light source and the surface. This relationship is described by the inverse square law of illumination.
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.
What is the relationship between the intensity and energy of light?
The relationship between the intensity and energy of light is that the intensity of light is directly proportional to its energy. This means that as the intensity of light increases, so does its energy.
What determines the resistance of a photoresistor?
The resistance of a photoresistor is inversely proportional to the intensity of the light on it.
The intensity of light waves is a measure of what?
The intensity of light waves is a measure of the energy carried by the waves. It is proportional to the square of the amplitude of the waves. The intensity of light waves determines how bright the light appears to us.
What happens to the light intensity if you half the distance to the source?
The light intensity increases by a factor of four when you half the distance to the source. This is known as the inverse square law, where light intensity is inversely proportional to the square of the distance from the source.
What is the illumination of a surface by a light source directly proportional?
The illumination of a surface by a light source is directly proportional to the intensity of the light source and inversely proportional to the square of the distance between the light source and the surface. This relationship is described by the inverse square law of illumination.
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.
If cardboard were four times the unit distance away from the bulb how much would the light falling on the cardboard be?
The intensity of light falling on the cardboard would be 1/16th of the original intensity because the intensity of light is inversely proportional to the square of the distance from the source.
Why does the intensity of light decrease as the distance from the source increases?
The intensity of light decreases with distance due to the spreading out of light waves over a larger area. This phenomena is a result of the inverse square law, which states that the intensity of light is inversely proportional to the square of the distance from the source. As light spreads out, it becomes less concentrated, resulting in a decrease in intensity.
Do waves of more light carry more Energy?
Yes, waves with higher intensity (more light) carry more energy. This is because energy is directly proportional to the square of the amplitude of the wave, which is related to the intensity of the light.
What is the relationship between the kinetic energy of ejected electrons and the intensity of incident light in the photoelectric effect?
In the photoelectric effect, the kinetic energy of ejected electrons is directly proportional to the intensity of the incident light. This means that higher intensity light results in higher kinetic energy of the ejected electrons.
Does kinetic energy of photo electron depend upon intensity of light?
No, the kinetic energy of a photoelectron is primarily determined by the frequency of the incident light (photon energy), not the intensity of the light. Increasing the intensity of light will increase the number of photoelectrons emitted but will not change their individual kinetic energies.
What is the power of light equation and how does it relate to the intensity of light emitted by a source?
The power of light equation is P I A, where P is power, I is intensity, and A is area. This equation shows that the power of light emitted by a source is directly proportional to the intensity of light and the area over which the light is spread. In simpler terms, the more intense the light and the larger the area it covers, the greater the power of light emitted.
