A) \[3.32\times {{10}^{-27}}\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[1.5\times {{10}^{-27}}\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) \[0.55\times {{10}^{-22}}\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) none of these
Correct Answer: A
Solution :
Gives: mass of body\[m=1\,\,kg\], velocity of body \[=200\,\,m/s\] The wavelength is given by \[\lambda =\frac{h}{mv}=\frac{6.63\times {{10}^{-34}}}{1\times 2000}\] \[=3.32\times {{10}^{-37}}=3.32\times {{10}^{-27}}\overset{\text{o}}{\mathop{\text{A}}}\,\]
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