A) \[{{(Kg)}^{-2}}\]
B) \[\Delta {{\mathbf{p}}_{1}}=-\Delta {{\mathbf{p}}_{2}}\]
C) \[\Delta E=-\Delta (PE+KE)=0\]
D) \[\mathbf{F}\Delta t=m\Delta \mathbf{v}\]
Correct Answer: A
Solution :
\[3\times {{10}^{9}}Hz\] \[{{20}^{o}}C\] \[{{40}^{o}}C\] \[1.69\times {{10}^{29}}\]
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