$\hspace{25px}$[![](https://i.stack.imgur.com/FKCkC.jpg)](https://i.stack.imgur.com/FKCkC.jpg)
[$\hspace{25px}$![](https://i.stack.imgur.com/OcsvC.jpg)](https://i.stack.imgur.com/OcsvC.jpg)$$
\begin{alignat}{7}
 & \begin{array}{l}
 \textbf{Figure 1.}~~
 \text{Here shadow is showing, but}
 \\ \text{not when it is near. I had seen an}
 \\ \text{explanation, but I am not sure about it.}
 \end{array}
 &
 & \begin{array}{l}
 \textbf{Figure 2.}~~
 \text{Here shadow is showing, but}
 \\ \text{not when the glass is near.}
 \\ \phantom{}
 \end{array}
 \\ \hspace{20px}
 & \hspace{300px}
 & \hspace{25px}
 & \hspace{300px}
\end{alignat}
$$