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Question 8

A scientific instrument lowered into a freshwater lake will be damaged if the total pressure acting on it exceeds 2.8 MPa. What is the maximum depth to which the instrument can be lowered before it is damaged?

(Use: atmospheric pressure = $Pa101\,000\text{ Pa}$ , density of water = 1000 kg/m³, and $9.81\text{ m/s}^2$ )

$m10.3\text{ m}$

$m275\text{ m}$

$m285\text{ m}$

$m296\text{ m}$

Markscheme

Pressure Questions

IGCSE
Physics
Pressure

188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.

Pressure

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

Question 8

(Use: atmospheric pressure = $Pa101\,000\text{ Pa}$ , density of water = 1000 kg/m³, and $9.81\text{ m/s}^2$ )

$m10.3\text{ m}$

$m275\text{ m}$

$m285\text{ m}$

$m296\text{ m}$

Markscheme

Pressure Questions

IGCSE
Physics
Pressure

188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.