MCQ
Write down the boolean expression for output $Y$ of a system shown in figure


- A$A \bar{B}+\bar{A} B$
- B$(\bar{A}+\bar{B})(A+B)$
- ✓$\bar{A} \bar{B}+A B$
- D$A \cdot B+(\bar{A}+\bar{B})$

$Y=\bar{A} \cdot \bar{B}+A \cdot B$
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$\overrightarrow{{E}}=200 \cos \left[\left(\frac{0.5 \times 10^{3}}{{m}}\right) {x}-\left(1.5 \times 10^{11} \frac{{rad}}{{s}} \times {t}\right)\right] \frac{{V}}{{m}} \hat{{j}}$
If this wave falls normally on a perfectly reflecting surface having an area of $100 \;{cm}^{2}$. If the radiation pressure exerted by the $E.M.$ wave on the surface during a $10\, minute$ exposure is $\frac{{x}}{10^{9}} \frac{{N}}{{m}^{2}}$. Find the value of ${x}$.


${i}=\left\{\sqrt{42} \sin \left(\frac{2 \pi}{{T}} {t}\right)+10\right\} {A}$
The $r.m.s.$ value of this current is ${A}$