Question

Write two main precautions to be taken to read the water level in the graduated cylinder.

Answer 1

THE TWO MAIN PRECAUTIONS  TO BE TAKEN TO READ THE WATER LEVEL IN GRADUATED CYLINDER ARE:

(1)THE READING HAS TO BE TAKEN AT THE SAME LEVEL AS THAT OF THE EYE  TO PREVENT ANY PARALLEX ERROR

(2)ALWAYS NOTE THE READING OF LOWER MENISCUS OF WATER LEVEL
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Answer 2

Two main precautions to be taken to read the water level in the graduated cylinder : -

<> Always take the reading of the lower meniscus

<> The reading should always be taken at the same level as that of our eye.
 This is to prevent the error due to Parallax