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प्रश्न
A simple barometer was first constructed by _______.
उत्तर
A simple barometer was first constructed by Torricelli.
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संबंधित प्रश्न
Match the following.
| Barometer | reduce friction |
| Increasing area of contact | Atmospheric pressure |
| Decreasing area of contact | cause of friction |
| Lubricants | increases friction |
| Irregular surface | decreases friction |
Vidhya feels that mercury is costly. So, instead of mercury she wants to use water as a barometric liquid. Explain the difficulty of constructing a water barometer.
Describe the construction and working of mercury barometer.
Higher Order Thinking Skill.
How high does the mercury barometer stand on a day when atmospheric pressure is 98.6 kPa?
When a mercury drop of radius 'R', breaks into 'n' droplets of equal size, the radius 'r' of each droplet is ______.
Let 'R1' and 'R2' are radii of two mercury drops. A big mercury drop is formed from them under isothermal conditions. The radius of the resultant drop is ______.
______ is the instrument used to measure atmospheric pressure.
On each 1 m2 of surface, the force acting is ______.
______ is a device for measuring atmospheric pressure without the use of liquids.
The barometer works by balancing the Mercury in the glass tube along with the outside air pressure.
