Light intensity is measured in: (MCAER 2017)

✔Explanation: Light intensity is measured in lumens per square foot (footcandles) or lumens per square meter (lux)
📌 Other Options Explanations:
-Option A: Lumens measure the total amount of visible light emitted by a source
-Option B: Candela is the SI unit of luminous intensity, measuring the power emitted by a light source in a particular direction
-Option D: Watts measure power or energy consumption.
🔑Key Points
-A lux meter is al called a light meter, it is a device which is used to measure the brightness.
-The lux meter measures the brightness specifically with the intensity by which the brightness appears to the human eye.
-Lux is a unit of measurement of brightness or illuminance.
🛑Additional Information
Sunshine recorder
-A sunshine recorder is a device that records the amount of sunshine at a given location or region at any time.
-The results provide information about the weather and climate as well as the temperature of a geographical area.
-This information is useful in meteorology, science, agriculture, tourism, and other fields.
Wet-bulb thermometer
-A wet bulb thermometer is simply a regular mercury thermometer whose bulb is covered with wet fabric, usually muslin, that is dipped in a reservoir to keep it wet.
-A wet bulb thermometer is used in conjunction with a dry bulb thermometer (which is simply a regular thermometer without the wet fabric covering).
-It gives us a way to measure the relative humidity of the air.
-The difference between wet bulb temperature and the dry bulb temperature depends on how much moisture is in the air.
Dry-bulb thermometer
-It is a thermometer that registers normal air temperature.