Question

rain gauge working in large amount​

Answer 1

Answer:

The optical gauge is has a funnel on top of a photodiode or a laser diode. Rainfall is measured by detecting optical irregularities. The funnel directs the drops at the light beam, then by measuring the intensity of scintillation it can electronically determine the rate of precipitation.this is the answer

Answer 2

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an anemometer is a device used to measure the speed of the wind and it's direction.