Two tuning forks A and B of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork A is set into vibration. State the condition for vibration in fork B
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Given Two tuning forks A and B of the same frequency mounted on separate sound boxes with their open ends facing each other. The fork A is set into vibration. State the condition for vibration in fork B
- In the air column of its sound box, the vibrating tuning fork A produces the forced vibrations.
- The sound box has a large surface area of air so these vibrations are of large amplitude.
- These are transferred to the sound box of the fork B. So the air column of the fork B vibrates with the frequency of fork A.
- Now the frequency of these vibrations is same as natural frequency, due to resonance the fork B starts vibrating.
- Suppose the tuning fork A is made to vibrate, the other tuning fork B will also start vibrating. This vibration of the tuning fork B produced is due to the resonance.
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