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प्रश्न
Sit near a desk. Tap the desk once with your hand. Listen carefully. Now put your ear on the desk as shown in the picture. Tap on the desk once again with your hand. Listen again. Was there any difference in the sound of the tap?
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उत्तर
Yes, when I put my ear on the desk I could hear the sharper sound.
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संबंधित प्रश्न
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