• # question_answer 49) A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be A) $6.6\times {{10}^{-32}}\,m$B) $6.6\times {{10}^{-34}}\,m$C) $1.0\times {{10}^{-35}}\,m$D) $1.0\times {{10}^{-32}}\,m$

$\lambda =\frac{h}{mv}=\frac{6.6\times {{10}^{-34}}}{0.66\times 100}=1\times {{10}^{-35}}m$