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A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m. The power of the source is
Options
(a) 20 W
(b) 25 W
(c) 40 W
(d) 50 W
Correct Answer:
20 W
Explanation:
Velocity, v = displacement / time = 6/3 = 2 m/s
.·. Power, P = Fv = 10 × 2 = 20 W
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- Water flows through a pipe. The area of cross-section at one place A₁=10 cm²,
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Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a simple pendulum performing simple harmonic motion, the time period
- A particle is moving such that its position coordinates (x,y) are (2 m,3 m) at time
- Water flows through a pipe. The area of cross-section at one place A₁=10 cm²,
- A particle free to move along X-axis has potential energy given as U(X) =k(1-e⁻ˣ²)
- A parallel plate condenser has a uniform electric field E(V/m) in the space between
Topics: Work Energy and Power (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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