Question:
A music system playing loud music is kept on a table. If a glass of water is kept on the same table, the glass vibrates and generates ripples in the water. This is due to a property known as
A music system playing loud music is kept on a table. If a glass of water is kept on the same table, the glass vibrates and generates ripples in the water. This is due to a property known as
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Resonance occurs when external frequency equals natural frequency, producing maximum amplitude.
Updated On: Jun 20, 2026
- Reflection of sound
- Refraction of sound
- Reverberation of sound
- Resonance of sound
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The Correct Option is D
Solution and Explanation
Step 1: Understand the situation.
The music system produces sound waves that travel through the table and force the glass to vibrate.
Step 2: Nature of vibration.
The glass starts vibrating due to external periodic force from sound waves. This is not random vibration but forced oscillation.
Step 3: Condition for resonance.
When frequency of external force matches natural frequency of object, amplitude increases significantly. This is called resonance.
Step 4: Effect observed.
Due to resonance, vibrations become strong enough to disturb water surface, producing ripples.
Step 5: Eliminate other options.
Reflection and refraction are wave direction changes, not vibration amplification. Reverberation is persistence of sound, not structural vibration.
Step 6: Final conclusion.
Thus, the correct phenomenon is: \[ \boxed{\text{Resonance of sound}} \]
The music system produces sound waves that travel through the table and force the glass to vibrate.
Step 2: Nature of vibration.
The glass starts vibrating due to external periodic force from sound waves. This is not random vibration but forced oscillation.
Step 3: Condition for resonance.
When frequency of external force matches natural frequency of object, amplitude increases significantly. This is called resonance.
Step 4: Effect observed.
Due to resonance, vibrations become strong enough to disturb water surface, producing ripples.
Step 5: Eliminate other options.
Reflection and refraction are wave direction changes, not vibration amplification. Reverberation is persistence of sound, not structural vibration.
Step 6: Final conclusion.
Thus, the correct phenomenon is: \[ \boxed{\text{Resonance of sound}} \]
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