defence exam Agniveer Army Tradesman Mock Test Series 2025 General Science Physics Wave

હવામાં ધ્વનિની ઝડપ કેટલી હોય છે?

1
434 મીટર/સેકન્ડ
2
343 મીટર/સેકન્ડ
3
383 મીટર/સેકન્ડ
4
373 મીટર/સેકન્ડ
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