nursing AIIMS BSc Nursing 2025 Mock Test Series Physics Waves Supersonic Speeds, Shock Waves

पराश्रव्य, अवश्रव्य और श्रव्य तरंगें क्रमशः νu, νi, νa की चाल के साथ एक वायवीय माध्यम से गमन करती हैं, तबः

1
νu ≤ νi = νa
2
νu = νi = νa
3
νu ≥ νi ≥ νa
4
νu ≤ νi ≤ νa
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