Advertisements
Advertisements
प्रश्न
Why is it not advisable to use a fountain pen while travelling in an aeroplane?
Advertisements
उत्तर
Fountain pens are built in such a way that the pressure inside them balances the atmospheric pressure at sea level. Since atmospheric pressure decreases with an increase in height above sea level, the pressure inside the pen turns out to be much greater than the air pressure in an aeroplane and the pen starts leaking.
APPEARS IN
संबंधित प्रश्न
How does the atmospheric pressure change with altitude?
Give two reasons why water is not a suitable barometric liquid.
What do the following indicate in a barometer regarding weather : sudden fall in the mercury level
Give reasons for the following:
The Westerlies in the Southern Hemisphere blow with greater force than those in the Northern Hemisphere.
What is the purpose of a barometer? State two major defects of a simple barometer.
What effect does temperature have on air pressure?
What is meant by atmospheric pressure?
Clouds float in atmosphere because of their low ______.
Define High pressure
Give Reason for the following
Our ears pop in Airplanes.
