28. A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m . The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N . The maximum possible value of angular velocity of ball (in radian/s) is\\
\includegraphics[max width=\textwidth, alt={}, center]{cdfce4af-7f3d-4d66-ab09-7da7ecb927ff-11_513_449_806_872}\\
(A) 9\\
(B) 18\\
(C) 27\\
(D) 36

\section*{ANSWER: D}
\begin{enumerate}
  \setcounter{enumi}{28}
  \item A meter bridge is set-up as shown, to determine an unknown resistance ' $X$ ' using a standard 10 ohm resistor. The galvanometer shows null point when tapping-key is at 52 cm mark. The end-corrections are 1 cm and 2 cm respectively for the ends A and B . The determined value of ' $X$ ' is\\
\includegraphics[max width=\textwidth, alt={}, center]{cdfce4af-7f3d-4d66-ab09-7da7ecb927ff-12_457_878_475_643}\\
(A) 10.2 ohm\\
(B) 10.6 ohm\\
(C) 10.8 ohm\\
(D) 11.1 ohm
\end{enumerate}

\section*{ANSWER:B}
\begin{enumerate}
  \setcounter{enumi}{29}
  \item A $2 \mu \mathrm {~F}$ capacitor is charged as shown in figure. The percentage of its stored energy dissipated after the switch $S$ is turned to position 2 is\\
\includegraphics[max width=\textwidth, alt={}, center]{cdfce4af-7f3d-4d66-ab09-7da7ecb927ff-12_508_726_1282_736}\\
(A) $0 \%$\\
(B) $20 \%$\\
(C) $75 \%$\\
(D) $80 \%$
\end{enumerate}

ANSWER: D

\section*{SECTION - II (Total Marks : 16)}
\section*{(Multiple Correct Answers Type)}
This section contains 4 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of which ONE or MORE may be correct.\\