1.

वायु में ध्वनि की चाल होती है :-(a) 332 m/s (b)‌‌‌‌ 333 m/s(c) 331 m/s (d)334 m/s​

Answer»

Answer:

HEY mate your opinion R wrong

correct answer is

speed of sound in air is about 343 metres per second

Explanation:

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