Advertisements
Advertisements
प्रश्न
What is an altimeter? State its principle. How is its scale calibrated?
उत्तर
An altimeter is a device used in aircraft to measure its altitude.
Principle: Atmospheric pressure decreases with the increase in height above the sea level; therefore, a barometer measuring the atmospheric pressure can be used to determine the altitude of a place above the sea level.
The scale of altimeter is graduated with height increasing towards left because the atmospheric pressure decreases with increase of height above the sea level.
APPEARS IN
संबंधित प्रश्न
Give reason for the following :
Two holes are made in a sealed oil tin to take out oil from it.
Why does nose start bleeding on high mountains?
What is meant by the term ‘Atmospheric Pressure’?
The radius of the press plunger and pump plunger are in ratio of 50 : 4. If an effort of 20 kgf acts on the pump plunger, calculate the maximum effort which the press plunger can over come.
What is the value of atmospheric pressure?
Why do not we feel uneasy even under enormous pressure of the atmosphere above as?
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
What will be the effect on air pressure if the temperature drops? Why?
Why is it not advisable to use a fountain pen while travelling in an aeroplane?
The highest air pressure at sea level was recorded at ______ Russia.
