A hydraulic press has area ratio 10:1. A force of 20 N on small piston can lift load of MCQ with Answer and Explanation

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A hydraulic press has area ratio 10:1. A force of 20 N on small piston can lift load of

A. 2 N

B. 200 N

C. 20 N

D. 2000 N

Answer: Option B

Solution (By JKSSB Mock Tests)

Pascal's law: F₁/A₁ = F₂/A₂ => F₂ = (A₂/A₁) F₁ = 10×20 = 200 N.

This question belongs to: Science Physics

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Correct Answer: Option B

Explanation:
Natural gas is fossil fuel, non-renewable.

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Correct Answer: Option D

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v_e = √(2GM/R): depends on planet's M and R, independent of projectile mass or launch direction. Memory tip: 'v_e ∝ √(M/R); property of planet, not projectile'. Gravitation concept frequently tested in competitive exams.

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Question #3

A 2 kg object has potential energy 196 J at a height (g=9.8) of

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Correct Answer: Option C

Explanation:
h = PE/(mg) = 196/(2×9.8) = 196/19.6 = 10 m.

This question belongs to: Science Physics

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