because thee is no proper intensity of incident radiation and there is cotinuously changing the intensity of incident radiation. ofcourse there is one colour at one time but at next time the light of next colour is allow to fall on the sample may by monochromator. (UOG students)
Intensity can be measured by converting units of electrical power in to decibels.
All sound output can and is measured in dB (decibel's)
The unit of Gray level pixel intensity is typically expressed in pixel value ranging from 0 (black) to 255 (white) in an 8-bit system. In medical imaging, Gray level pixel intensity can also be measured in Hounsfield Units (HU) for CT scans or in Standardized Uptake Value (SUV) for PET scans.
The intensity of an earthquake is measured using the Modified Mercalli Intensity (MMI) scale, which ranges from I (not felt) to XII (total destruction). Unlike magnitude scales, which quantify the energy released, intensity measures the effects of an earthquake at specific locations, taking into account factors like building structures and distance from the epicenter. The units of this scale are qualitative descriptors rather than numerical values.
In the International System of Units (SI Units), time is measured in seconds.
Relative intensity is measured in decibels and is abbreviated dB.
decibels
Intensity
Intensity can be measured by converting units of electrical power in to decibels.
The intensity of vibrations is typically measured in units called decibels (dB) for sound vibrations, or in units such as meters per second squared (m/s^2) for mechanical vibrations.
Sound intensity I is measured in watts per meter squared (W/m²). Look at the link: "Conversion of sound units (levels)".
Intensity refers to the amount of energy in a sound wave, measured in watts per square meter, while loudness is the perception of intensity by the human ear, measured in units called decibels. Intensity can be objectively measured, while loudness is a subjective perception that can vary from person to person.
Luminous intensity is a scalar quantity, as it only has magnitude (brightness) and no direction associated with it. It is typically measured in units of candela.
Intensity of light is measured in units called lux (lx). Lux is defined as the amount of light intensity or luminous flux per unit area. It helps quantify the level of brightness perceived by the human eye.
Sound is measured in dB ( Decibels) for intensity and or Hz ( Hertz) for frequency or pitch.
GPE = Weight * Height (in suitable units) where the height is measured from some arbitrary reference point.
Intensity is typically measured in units such as watts per square meter (W/m^2) for light or sound, or decibels (dB) for sound. For electromagnetic radiation, intensity can also be measured in terms of irradiance or radiant flux. The specific unit used depends on the type of intensity being measured.