Physics · Sound
एक भारी धातु के ब्लॉक के अंदर की आंतरिक दरारों या दोषों का पता बिना उसे नुकसान पहुंचाए किसकी मदद से लगाया जा सकता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1पराबैंगनी ध्वनि / पराश्रव्य ध्वनि (Ultrasound)✓
- 2श्रव्य ध्वनि (Audible sound)
- 3अपश्रव्य ध्वनि (Infrasonic sound)
- 4दृश्य प्रकाश
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पराबैंगनी ध्वनि / पराश्रव्य ध्वनि (Ultrasound)
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