$
d = 3.84 \times 10^5 \text{ km}
$

A substance which does not allow current to pass through is
\begin{enumerate}[label=(\roman)]
\item Conductor
\item Semiconductor
\item Insulator
\item None of the above
\end{enumerate}

The atomic number is the number of
\begin{enumerate}[label=(\roman)]
\item Protons
\item Neutrons
\item Electrons
\item Molecules
\end{enumerate}

Fill in the blanks:
\begin{enumerate}
\item Acceleration due to gravity on the earth is [tex]$\qquad$[/tex]
\item Audible range of the human ear is [tex]$\qquad$[/tex]
\item Speed of light in vacuum is [tex]$\qquad$[/tex]
\item Dimensions of work are [tex]$\qquad$[/tex]
\item Rate of change of velocity is [tex]$\qquad$[/tex]
\item The substance which reflects light is called [tex]$\qquad$[/tex]
\end{enumerate}