Physics Unit27: Early Quantum Theory and Models of the Atom (id: 9f1d68d37)

[单选题]
What is the de Broglie wavelength of a ball of mass 20mzetc)o-)fer* u3l. y0 g moving with a s-xzb;o aw*jb sj*u; nw- (y)ompeed of 30 z;ajy)b * uo --x;*n(ww objsmm/s?

A. $1.1 \times 10^{-34} \; m$
B. $2.2 \times 10^{-34} \; m$
C. $4.5 \times 10^{-28} \; m$
D. $6.7 \times 10^{-27} \; m$


参考答案:  A


本题详细解析: 暂无