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Questions  

A cycle tube has volume 2000 cm3. Initially the tube is filled to (3/4)th of its volume by air at pressure of 105 N/m2. It is to be inflated to a  pressure of 6 × 105 N/m2 under isothermal conditions. The number of strokes of pump, which  gives 500 cm3 air in each stroke, to inflate the tube is

a
21
b
12
c
42
d
11

detailed solution

Correct option is A

P2V2=P1V1+P1V1n

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