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Assertion: In adiabatic expansion, tempe...

Assertion: In adiabatic expansion, temperature of gas always decreases.
Reason: In adiabatic process exchange of heat is zero.

A

Both 'A' and 'R' are true and 'R' is the correct, explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

A' is true and 'R' is false

D

Both 'A' and 'R' are false

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-WAVES-EXERCISE-IB (Assertion (A) & Reason (R) Type Questions)
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  8. Assertion: In a stationary wave, there is no transfer of energy. Rea...

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  9. (A): For the formation of stationary waves the medium must be bounded ...

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  10. Statement-1 : In the case of a stationary wave, a person hear a loud s...

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  11. (A): Velocity of particles, while crossing mean position (in stationar...

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  12. (A): In a longitudinal stationary wave a displacement node coincides w...

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  17. (A): The maximum number of beats that the human ear can detect is "10'...

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