Đơn Vị Thông Dụng Của Mức Cường độ âm Là Gì? | Cungthi.online

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Câu hỏi

Đơn vị thông dụng của mức cường độ âm là gì?

A.

W/m2.

B.

dB.

C.

N/m2.

D.

W.

Đáp án và lời giải Đáp án:B Lời giải:

Phân tích: + Đơn vị thông dụng của mức cường độ âm là dB.

Chọn đáp án B.

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