Question

When the ink fountain pen leaks on high altitude:

• A. pressure of air is more outside than inside the ink pen
• B. pressure of air is less outside than inside the pen
• C. the density of ink on high altitude decreases
• D. none of these

Answer 1

The correct option is B pressure of air is less outside than inside the pen

As higher altitudes, the pressure decreases.
The pressure at higher altitudes is comparatively less, so to equalize the pressure difference ink starts moving out from the pen which has a relatively high pressure.