Question

A pont source of its is placed at the
bortom of and conting a moretractive
mda 53
A person is over the source from all the surface. There
is an opaque disc ufrodius on ting on the surface. The
centre of the disc les aurrically when the source o. The
liquid from the vessel is gradually dromed out through a tap.
What is the maximum height of the liquid for voliich the
source cannot be seen at all ?​

Answer 1

Answer:

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