Physics Unit27: Early Quantum Theory and Models of the Atom (id: 4f2e3c02d)

[单选题]
X-rays with a wavelength of 0. x9qxg0 *33cmz:nqt ok00100 nz n5b 5yyxo8*xm are scattered by free electrons at 130e. What is the kinetic ene5 y*oxxz 8bny5rgy of each recoil electron?

A. $2.5 \; MeV$
B. $5.0 \; MeV$
C. $7.5 \; MeV$
D. $10 \; MeV$


参考答案:  B


本题详细解析: 暂无