Igcse Model Questions Vol1 2020 Physics Question 27

Practice objective / multiple choice question 27 from the 2020 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2020 Physics Objective / Multiple Choice Medium Difficulty
Question 27 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

A vertical cylindrical container has a cross‑sectional area of \(0.40\,\text{m}^2\). It is initially filled with water to a height of \(0.60\,\text{m}\) and sealed by a frictionless piston of the same cross‑section. Above the water is trapped air at atmospheric pressure \(1.00\,\text{atm}\). The piston is slowly pushed down by \(0.05\,\text{m}\), compressing the air and raising the water level by the same amount. Assuming the temperature remains constant, calculate the magnitude of the force that must be applied to the piston (in newtons). Use \(1\,\text{atm}=101.3\,\text{kPa}\).

Answer Options

A. 4.5e3
B. 6.9e3
C. 7.2e3
Correct Answer D. 5.8e3
Correct Answer
D
Correct Option:
5.8e3

About This Question

This is Igcse Model Questions Vol1 2020 Physics Question 27. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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