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Measure Light Intensity using Light Dependent Resistor (LDR) The resistance of the Light Dependent Resistor (LDR) varies according to the amount of light that falls on it. The relationship between the resistance RL and light intensity Lux for a typical LDR is RL = 500 / Lux Kohm With the LDR connected to 5V through a 3.3K resistor, the output voltage of the LDR is Vo = 5*RL / (RL+3.3) Reworking the equation, we obtain the light intensity Lux = (2500/Vo - 500)/3.3 For a low cost LDR, at the same light intensity, the part to part variation in resistance can be as high as 50%. Therefore such a low cost LDR is seldom used for measuring light intensity but more for light presence/absence detection.
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What is the function of bulb in frequency of ac mains by electrically vibrating rod?
The bulb in the frequency of AC mains by electrically vibrating rod acts as a visual indicator of the frequency of the vibrations produced by the rod. As the rod vibrates at the frequency of the AC mains, the bulb will flicker or light up in synchronization with the vibrations, providing a way to visually observe the frequency.
What equipment is used to measure light intensity?
A light meter is typically used to measure light intensity. It can measure the amount of light in the environment in lux or foot-candles. Light meters are commonly used in photography, cinematography, and environmental monitoring.
What is the abbreviation for the units of measure of wavelengths of light?
The abbreviation for the units of measure of wavelengths of light is "nm" which stands for nanometers.
What do light years measure in astronomy?
Light years measure distance in astronomy. It is the distance that light travels in one year, which is about 9.46 trillion kilometers.
The wavelength of a light wave can be used to measure what?
The wavelength of a light wave can be used to measure the color of the light. Different wavelengths correspond to different colors of light on the visible spectrum.
What is intencity of light?
It is luminous intensity measured in candelas
What is the richtor scale?
the scale used to measure the intensity of earthquakes
What is the function of bulb in frequency of ac mains by electrically vibrating rod?
The bulb in the frequency of AC mains by electrically vibrating rod acts as a visual indicator of the frequency of the vibrations produced by the rod. As the rod vibrates at the frequency of the AC mains, the bulb will flicker or light up in synchronization with the vibrations, providing a way to visually observe the frequency.
Who try to measure the speed of light?
Roemer was the first to measure the speed of light.
What equipment is used to measure light intensity?
A light meter is typically used to measure light intensity. It can measure the amount of light in the environment in lux or foot-candles. Light meters are commonly used in photography, cinematography, and environmental monitoring.
How would you measure the speed of light?
Light years
Can you measure lighting?
You can measure light by:The lumen (symbol: lm) is the SI unit of luminous flux, a measure of the power of light perceived by the human eye.orA light meter is a device used to measure the amount of light.You measure a lighting fixture with a ruler, too
A what is used for what?
to measure light
What is a light measure in?
watts
What is the abbreviation for the units of measure of wavelengths of light?
The abbreviation for the units of measure of wavelengths of light is "nm" which stands for nanometers.
What do light years measure in astronomy?
Light years measure distance in astronomy. It is the distance that light travels in one year, which is about 9.46 trillion kilometers.
The wavelength of a light wave can be used to measure what?
The wavelength of a light wave can be used to measure the color of the light. Different wavelengths correspond to different colors of light on the visible spectrum.
