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(A): The basic of Laplace correction was...

(A): The basic of Laplace correction was that, exchange of heat between the region of compression and rarefaction in air is not possible.
(R): Air is a bad conductor of heat and velocity of sound in air is large

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

Verified by Experts

The correct Answer is:
A
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AAKASH SERIES-WAVES-EXERCISE-IB (Assertion (A) & Reason (R) Type Questions)
  1. (A): Sound would travel faster on a hot summer day than on a cold wint...

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  2. (A): The error in Newton's formula of velocity of sound in air was 16%...

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  3. (A): The basic of Laplace correction was that, exchange of heat betwee...

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  4. (A): Under given conditions of pressure and temperature, sound travels...

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  5. (A): The speed of sound in solids is maximum though their density is l...

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  6. (A): On a rainy day sound travel faster than on a dry day. (R): When...

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  7. (A): Sound produced by an open organ pipe is richer than the sound pro...

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  8. (A): The bells are made of metals and not of wood (R): Wood offers h...

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  9. (A): Infrasonic waves are generally produced by large vibrating bodies...

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  10. (A): Speed of sound in a gas is independent of changes in pressure of ...

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  11. (A): Radio waves can be polarized (R): Sound waves in air longitudi...

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  12. (A): In adiabatic expansion, the temperature of gas must decrease. (...

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  13. (A): Sound wave can not be polarized. (R): Polarisation is shown by ...

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  14. (A): A tuning fork is made of an alloy of steel, nickel and chromium. ...

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  15. (A): Two arms of a tuning fork vibrate in same phase. (R): Each arm ...

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  16. (A): All the particles between two consecutive nodes vibrate in the sa...

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  17. (A): In a perfect stationary wave, there is no transfer of energy. (...

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

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  19. (A): In the case of a stationary wave, a person hear a loud sound at t...

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

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