Describe a suitable experiment to demonstrate that a liquid exerts pressure sideways also.

The following experiment demonstrates that a liquid exerts pressure sideways also:

1. Take a glass tube closed at one end and having an opening in its side near the bottom.
2. Tie a deflated balloon at the side opening of the tube.
3. Hold the tube vertically straight as shown in the above figure.
4. Pour some water in the tube.

Observations — After sometime we will notice that the balloon bulges out as shown in figure (b) above.

Conclusion — From the above experiment it is concluded that a liquid exerts pressure sideways also.