A) \[-\text{459}.\text{67}{}^\circ \text{F}\]
B) \[-\text{491}.\text{67}{}^\circ \text{F}\]
C) \[\text{52}00\text{{ }\!\!\mathrm{\AA}\!\!\text{ }}\]
D) \[\text{Vc}=\text{1}.\text{5V}\]
Correct Answer: A
Solution :
Given. \[\text{mgh}\]and \[\text{mgh}=\text{4}0\times \text{9}.\text{8}\times \text{h}\] Now, \[P(A'\cap B')=1-P(A\cup B)=\frac{1}{3}\] \[|e|=\frac{d\phi }{dt}=B\frac{dA}{dt}\] \[[\because \phi =BA]\] \[=\pi B\frac{d}{dt}({{r}^{2}})\]\[|e|=\pi B.2r\frac{dr}{dt}\] \[\frac{dr}{dt}={{10}^{-2}}\] \[\text{B}=\text{1}{{0}^{-\text{3}}}\] \[e=1\mu V\] \[\therefore \]
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