AP EAMCET · PHYSICS · Kinetic Theory of Gases
Tyre of a bicycle has volume . Initially the tube is filled of its volume by air at atmospheric pressure . When a rider is on the bicycle, the area of contact of tyre with road is . The mass of rider with bicycle is . If a pump delivers a volume of air in each stroke then the number of strokes required to inflate the tyre is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given, Initial volume, V0=75100×2×10-3 m3=1.5×10-3 m3 and net pressure on tyre is, P=mgA+P0=120×1024×10-4+105=6×105 N m-2 Using the ideal gas equation, PV=nRT⇒n=PVRT=6×105×2×10-3RT...1 again using the ideal…
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