Question

1)what precautions should be taken while studying the properties of ethanol acid.
2)write 2 precautions to be taken while finding the image distance using convex lens.


Pls gv answers

Answer 1

Some of the precaution are :

1- Avoid excessive inhaling of acetic acid vapours.

2- Do not use laboratory burners or open flames in this experiment.

(2) a. Hold the lens between the object and the screen with its face parallel to the screen.

b. Adjust the position of the lens so s to form a sharp image of the distant object on the screen.