Question

(4) Where will the pressure be more, 10 m deep
or 20 m deep under the sea level ?​

Answer 1

$\huge{\green{\underline{\underline{Answer:-}}}}$

Explanation:

P = hρg ---> ( Pressure due to weight of fluid)

where, P = pressure

h = depth

ρ = density

g = gravity = 9.8 m/s² or 10 m/s²

Here, pressure is directly proportional to depth

Thus, Under water pressure increases with depth under water

Therefore,pressure will be more at 20m deep sea level than at 10 m deep sea level

Knowledge booster:

☆ In atmosphere, pressure decreases with height that is altitude

☆ If free surface of liquid is plane, then the points below and above the surface of water have same pressure

☆ Another formula of pressure,

$\\ \\ P = \dfrac{F}{A} \\ \\ P \: = pressure \\ \\ F = force \\ \\ A = area$

# Try to examine more such examples to get good hold on it

Answer 2

Answer:

Pressure will be more at 20m deep under the sea level.

Explanation:

Pressure = h x density x g

where h = depth and g = acceleration due to gravity

pressure is directly proportional to depth,

therefore pressure will be more at 20m depth