[問題] 高中問題(動能)
這世上高中的親戚問我的問題
我離高中時代有點久遠
再說如果我是高中生
也沒把握能回答出來...
λ=h/p=h/[(2mE)^(1/2)]
1.由此可知p^2=2mE,將p=mv代入可得:E=(mv^2)/2
2.將E=hf代入v=λ/f可得:λ=hv/E。再利用λ相同,可得hv/E= h/[(2mE)^(1/2)],
然後就…E=2m(v^2)
請問問題出在哪裡??
這疑問讓我這個年假不太好過呀>"<
請版上各位大大幫忙一下
謝謝
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