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A tuning fork producing sound will stop ...

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

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

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

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

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

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

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

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

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

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

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

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

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  12. (A): Doppler effect for light is important in astronomy. (R): Dopple...

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  13. (A): Doppler effect is not applicable for a supersonic source of sound...

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  14. (A): When an observer moves towards a stationary source, the frequency...

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  15. (A) : When a source moves towards a stationary observer, the speed of ...

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  16. A : Intensity of sound wave does not change when the listener moves ...

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  17. (A): When an observer in motion 'passes by a stationary source the app...

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  18. (A): Apparent frequency is equal to actual frequency when there is no ...

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  19. (A): If wave enters from one medium to another medium then sum of ampl...

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  20. (A): When a sound source moves towards observer, then frequency of sou...

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