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प्रश्न
What is the principle on which sonar is based?
अति संक्षिप्त उत्तर
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उत्तर
SONAR is based on the reflection of ultrasonic sound waves (echo ranging).
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Sound - Frequently Asked Questions in Board Examination [पृष्ठ २०८]
