GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Tide
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Rain
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Storm
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Clear weather
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Detailed explanation-1: -Sudden fall in barometer reading indicates Storm. As storms have a centreof low pressure with a system of high pressure sorrounding it. Since pressure falls while going into storm there will be fall in barometer.
Detailed explanation-2: -Atmospheric (barometric) pressure goes down when weather conditions become more severe – thunder clouds rolling in, the sky darkening, wind picking up, etc. Atmospheric (barometric) pressure goes up when weather conditions level out – clouds clear, humidity drops, etc.
Detailed explanation-3: -In general, a falling barometer indicates the approach of a storm. If the mercury is over 30.20 inches but falling quickly, warmer, cloudier weather is coming. If the mercury continues to fall, the weather will worsen. When the mercury level is between 30.20 and 29.80 inches and dropping rapidly, expect precipitation.