34. During Cyclones she roofs are
blown off due to
(2
(1) high velocity over the roof and
Low pressure on the roof
(2) low velocity over the roof and
Low pressure on the roof
38.
(3) low velocity over the roof and
high pressure on the roof
(4) high velocity over the roof and
high pressure on the roof
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The high wind blowing over the roof creates a low pressure in accordance with Bernoulli's principle. The pressure below the roof is equal to the atmospheric pressure which is now larger than pressure above the roof. ... Once the roof is lifted up, it is blown off with the wind along its direction.
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