a photodiode
A spectrometer measures properties of light of a specific part of the wavelength. It is often used to measure the intensity of a light.
Electromagnetic radiation is just light. You can measure light with a light meter, which tells you intensity, or a camera sensitive to different frequencies. You can also use a magnetometer (Gaussmeter) to measure the B field component or a voltmeter to measure the E field component.Your eyes are instrumentstha measure EM radiation between 300 and 700 microns. We call this type of EM radiation "visible light." Other detectors of EM radiation ar CCD chips in digital cameras, and IR detectors in appliances with rerote controls.spectroscope?
The SI unit of luminous intensity is the candela.
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.
A photometer is an instrument used to measure light intensity, therefore, the eclipsing binaries are best studied as we observe a periodic decrease of sunlight intensity as one member of the binary passes in front of the other.
A spectrometer measures properties of light of a specific part of the wavelength. It is often used to measure the intensity of a light.
A luminometer, also known as a photometer, is used to to measure light intensity.
lux meter or light meter
Electromagnetic radiation is just light. You can measure light with a light meter, which tells you intensity, or a camera sensitive to different frequencies. You can also use a magnetometer (Gaussmeter) to measure the B field component or a voltmeter to measure the E field component.Your eyes are instrumentstha measure EM radiation between 300 and 700 microns. We call this type of EM radiation "visible light." Other detectors of EM radiation ar CCD chips in digital cameras, and IR detectors in appliances with rerote controls.spectroscope?
is there a scale used to measure the intensity of heat wave
A candela is a unit of measurement for light sources and light emissions. Light beams projects different color at different wavelengths, and a candela is used to measure the intensity of the light.
PAGASA used richter scale to measure the intensity of an earthquake
a spectroscope is used to measure light waves. It can measure lights intensity, wavelength, and it polarization.
decibels measure the intensity of sound.
It depends on what substance/object you are trying to determine the intensity.
Photometer-used to measure light intensity on land Hydrophotometer-used to measure light intensity on land Colorimeter-used to measure acidity or alkalinity of soil or solution Sacchi disc-used to measure the turbuduty ir transparency of water Meter rule-used to measure the length if
Its applicable for all spectroscopy, higher is the substance higher is the intensity of light emit or absorbed. Taking some known amount and calculating the intensity ,finally ploting a graph of them . Then for our unknown we can measure intensity and extrapolating graph we can know the amount quantitatively Don't be confuse with intensity and frequency of light. Intensity says about the amount and frequency about energy.