Light intensity.
the physical quantity is distance and unit is meters
it is a unit rate
Unit rate
the formula showing the relation between the unit of any physical quantity n the unit of fundamental physical quantity is called dimensional formula.........of dat quantity
To measure a physical quantity correctly and need to compare it with some standard quantities. Thus a standard unit is needed to measure a quantity correctly.
Illumination
lux
The difference between quantity and unit in "16 pounds" is the unit is pounds and the quantity is 16.
Lux is not a unit of length. The two units are utterly incompatible.Lux is not a unit of length. The two units are utterly incompatible.Lux is not a unit of length. The two units are utterly incompatible.Lux is not a unit of length. The two units are utterly incompatible.
Lux is used in measuring luminous flux per unit area.
lux
A lux (lx) is the SI unit of iluminance, or light intensity as seen by the human eye.
The lux is the SI unit of illuminance, and is equal to 1 lumen per square meter.
LUX is the measurement of illuminance and luminous emittance from light sources.
Lux is unit for measuring the illumination (illuminance) of a surface. It is the amount of light received per unit of surface area. You can' t convert watt, which is power, to Lux.
A standard use for a measurement of a physical quantity is called the unit of that physical quantity
It is a unit rate.A unit rate.