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What describes the effect of distance on the intensity of light?
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How does light intensity vary with distance form the source?
Light intensity is inversely proportional to the square of the distance: I = k/d2
How is intensity of light related to photons?
Increasing the intensity of light will increase the number of photons arriving per second. Increasing intensity has no effect on photon energy.
What describes the amplitude of a wave?
The square of the amplitude gives the intensity of the wave. Intensity in case of sound is sensed as loudness and in case of light as brightness.
Why does the intensity of light change with distance?
As light gets farther from the source, the same amount of light spreads out over a larger area.
What happens to the light intensity if you tripled the distance to the source?
For example, assume you are shining a flashlight at the wall. If you move twice as far from the wall, the spot of light will be twice the diameter. If the diameter doubles, then the area of the spot is 4 times as big. Thus, the same light is lighting 4 times as much wall. Thus, the intensity is 1/4 of the original intensity. The intensity varies with the inverse of the square of the distance.
How does light intensity vary with distance form the source?
Light intensity is inversely proportional to the square of the distance: I = k/d2
How is intensity of light related to photons?
Increasing the intensity of light will increase the number of photons arriving per second. Increasing intensity has no effect on photon energy.
How does changing the light intensity effect photosynthesis and why?
By changing the light intensity the rate of photosynthesis will either increase or decrease because it is one of the factors that affects photosynthesis. If you increase the light intensity the rate increases but if you decrease the light intensity the rate decreases.
What describes the amplitude of a wave?
The square of the amplitude gives the intensity of the wave. Intensity in case of sound is sensed as loudness and in case of light as brightness.
What does the slope of the graph of photoelectric current versus intensity signify in the photoelectric effect?
The current rises as does the intensity of light detected. The more light the greater the intensity, and the greater the current. The answer to the question is that photoelectric current displayed on a graph is shown as a slope that varies with the intensity of light. Someimes it can go up, sometimes it can go down.The ultimate answer is that the photoelectric effect is unreliable, but it is improving!
How is laser light different from incandescent light?
The intensity of light from most light sources is inversely proportional to the square of the distance from the source. So the intensity two meters from an incandescent lamp is one quarter of the intensity at one meter, and at three meters from the lamp the intensity is one ninth of the intensity at one meter. Laser light ideally has the same intensity at any distance.
When referring to light intensity describes the light source's?
well i would tell you but i don't know the answer too bad too sad.
When referring to light intensity describes the light sources?
well i would tell you but i don't know the answer too bad too sad.
Why does the intensity of light change with distance?
As light gets farther from the source, the same amount of light spreads out over a larger area.
What happens to the light intensity if you tripled the distance to the source?
For example, assume you are shining a flashlight at the wall. If you move twice as far from the wall, the spot of light will be twice the diameter. If the diameter doubles, then the area of the spot is 4 times as big. Thus, the same light is lighting 4 times as much wall. Thus, the intensity is 1/4 of the original intensity. The intensity varies with the inverse of the square of the distance.
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 factor effects the intensity of light the color of light and the type of electromagnetic radiation that is given off by the electron?
Photoelectric effect
