[考古] 98台聯24題

作者: retryi12 (WOW)   2010-06-29 14:40:32
Find the lower limit of γ-ray frequency for pair production
(electron-positron creation)
(A)2.0*10^20 Hz(B)2.5*10^20 Hz(C)3.0*10^20 Hz(D)3.5*10^20 Hz(E)4.0*10^20 Hz
然後順便問一下這個題目需要考慮靜止能量?
謝謝~
作者: r19891011 (弧形)   2010-06-30 01:06:00
我猜要吧?

Links booklink

Contact Us: admin [ a t ] ucptt.com