Question

Write two precautions necessary for recording accurate readings​

Answer 1

Answer:

Switch off the fan in the lab so that wind will not affect the result.

2. Ensure that the ruler has stopped moving before taking length measurement

3. You should take 3-4 reading for acccurate measurements

4. The device must be working properly

Explanation:

Hope it helps ☺️

Answer 2

Two precautions are :

(i) The initial point of distance must coincide with the zero reading of meter scale.

(ii) The eye should be kept in line with the point of measurement.