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Sound waves in air cannot be polarized b...

Sound waves in air cannot be polarized because

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:
A
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AAKASH SERIES-WAVES-EXERCISE-IB (Assertion (A) & Reason (R) Type Questions)
  1. Assertion (A) : Radio waves can be polarised. Reason (R) : Sound wav...

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  2. Assertion: In adiabatic expansion, temperature of gas always decreases...

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  3. Sound waves in air cannot be polarized because

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

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

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

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  7. Assertion: In a stationary wave, there is no transfer of energy. Rea...

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

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

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

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

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  12. A tuning fork producing sound will stop producing sound when you touch...

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  13. (A): When a stretched string vibrates in two segments, then all the vi...

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  14. A violen note and sitar note may have the same frequency, yet we can d...

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  15. A): An open organ pipe of certain length have the same fundamental fre...

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

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  17. (A): Violet shift indicates that a star is approaching the earth. (R...

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  18. A : Doppler's effect in sound is asymmetric but in light , it is symm...

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  19. A : In Doppler's effect the value of apparent frequency depends on t...

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  20. Statement(A): The reflection of sound from an extended object is echo ...

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