Assertion (A): The air pressure in a car tyre increases during drivingReason (R): Temperature of air in the tyre increases due to friction of tyre with road. Increase in temperature results in an increase in pressure according to Charles’s law
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a
Both assertion (A) and reason (R) are correct and R gives the correct explanation
b
Both assertion (A) and reason (R) are correct but R does not give the correct explanation
c
A is true but R is false
d
Both A and R are false
answer is A.
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Detailed Solution
When the vehicle is in motion temperature of tyre and hence the temperature of gas increases due to friction. Hence P∝T at constant volume.
Assertion (A): The air pressure in a car tyre increases during drivingReason (R): Temperature of air in the tyre increases due to friction of tyre with road. Increase in temperature results in an increase in pressure according to Charles’s law