Q. डॉप्लर प्रभाव सम्बंधित है?

(A) ध्वनि
(B) जनसँख्या
(C) मनोविज्ञान
(D) मुद्रा प्रचलन

✅ Correct Answer: (A) ध्वनि

Published by Kirti ⭐ 10.45K Points at 18-May-2022 09:36 am in Physics

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