dives into a shallow lake to explore the fauna that lives at the bottom of the lake. How is the diver's pressure related at different points in the lake? Answers: a) As the diver dives, he feels an increasing pressure increase until he reaches the bottom. b) As the diver dives, he feels a uniform pressure increase until he reaches the bottom.
A diver dives into a shallow lake to explore the fauna that lives at the bottom of the lake. How is the diver's pressure related at different points in the lake?
Answers:
a) As the diver dives, he feels an increasing pressure increase until he reaches the bottom.
b) As the diver dives, he feels a uniform pressure increase until he reaches the bottom.
c) As the diver dives he feels a decrease in pressure as the height from the bottom decreases.
d) As the diver dives he feels an increase in pressure, but at the bottom the pressure decreases.
let pressure due to at atmosphere be Po
pressure at surface of liquid = Po as the surface is in contact with atmosphere
according to pascal's law
increase in pressure inside at liquid of density n at depth h is given by
increase in pressure = n g h
( where
n = density of liquid
g = acceleration due to gravity
h = depth at which pressure is needed to find )
presure at surface = Po
increase in pressure at depth h = ngh ...eq1
pressure at depth h = pressure at surface + increase in press
Ph = Po + ngh
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