點解個答案是T=1/10s or 0.1s 點計???

2013-01-11 5:06 am
find the period of a wave if the frequency is 10 hz?
點解個答案是T=1/10s or 0.1s 點計???

回答 (2)

2013-01-11 5:33 am
✔ 最佳答案
因為frequency 表示每秒中有幾多個完整的waves.所以10Hz即係一秒內有10個waves, 因此T代表係出現一個完整的wave需要多少時間,由於一秒有十個,所以一個係0.1s. 簡單泥講f=1/T, 同時T=1/f
2013-01-11 6:09 am
Period means the time required for a complete wave to be produced.
∵ As the frequency of the wave is 10 hz (i.e. 10 complete waves / SECOND)
∴ The period is 1/10 seconds (or 0.1 sec.)


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