Physics · Sound
In industries, how are ultrasonic waves primarily used to ensure the structural integrity of metallic components such as machine parts and bridges?
- 1To heat the metal to remove impurities
- 2To polish the surface of the metal
- 3To detect cracks and flaws inside the block✓
- 4To change the density of the metal
Correct answer
To detect cracks and flaws inside the block
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