Question

what
are
the
activity
precautions taken in the
focal length
of the
in the
lens depends
on the
surrounding medium
the man who attend
answers
as
correct
It will be
a best answer​

Answer 1

Answer:

I am soory mujhe nahi pata

Answer 2

Answer:

step by step explanation

Explanation:

precautions, is first the beaker height should be greater than focal length

second we have to take known focal length of lens