Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Live 1-1 coding classes to unleash the creator in your Child
In a barometer, how important is it that the inner diameter of the barometer be uniform? That the barometer tube be absolutely vertical?
Pressure depends on the height and density of the liquid used in the barometer. The height of the liquid column is due to the pressure exerted by the atmosphere on the other surface of the barometer. It is not depend on the diameter of the barometer.But the pressure difference between the tube is directly proportional to fourth power of its diameter. So, the pressure difference between the narrow regions is different from the pressure difference between the wider regions of the tube used in the barometer. In order to avoid such discrepancies, the diameter of the tube should be uniform.For accurate measurement of the pressure, the tube should be absolutely vertical. This makes to determine the height of the liquid column easily. If the tube is not vertical but inclined to some angle, the corresponding height should be taken the vertical component.
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -