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A door of dimensions length 2 m, breadth 1.2 m is acted upon by a certain force due to the air inside the room. The atmospheric pressure is 105 pa, the

magnitude force is

(A) 2.4 ×10^5 N (B)240 N (C)2.4 KN (D)24 N



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Force due to the pressure is equal to pressure * area

     F = 2 * 1.2 *  10^5 = 2.4 * 10^5 Newtons

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