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Senior High
Physics
想問聲音強度為何會增大
Physics
Senior High
6 monthsago
外套呢?
想問聲音強度為何會增大
A 14. 音頻產生器同時提供SS 兩個點音源發出400Hz的聲波,已知平面上的P 點聲音強度為非常微弱的聲音,若音頻產生器改提供800Hz的聲波,其振幅 不變,則P點所聽到的聲音強度、音調變化為何? 選項 (A) (B) (C) (D) 聲音強度 大聲 大聲 小聲 小聲 不變 音調變化 高音 低音 高音 低音 高音
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