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A bulb has a power of 200W. What is the ...

A bulb has a power of 200W. What is the energy dissipated by it in 5 minutes?

A

60J

B

600J

C

60kJ

D

6J

Text Solution

Verified by Experts

The correct Answer is:
A


Pattern A is more sturdy because the moment of the tension about the fulcrum is maximum in A to counter balance the moment of mg acting from the centre of mass of the rod.
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KUMAR PRAKASHAN-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-SECTION-E MULTIPLE CHOICE QUESTIONS
  1. Which among the following is a unit for electrical energy?

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  2. The moment of inertia of a rod about an axis through its centre and pe...

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  3. A bulb has a power of 200W. What is the energy dissipated by it in 5 m...

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  4. If a solid sphere of mass 1 kg and radius 0.1 m rolls without slipping...

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  5. Out of the following, which one is not a source of electrical energy?

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  6. What is the moment of inertia of a cylinder of radius r, long its heig...

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  7. Which among the following is an expression for energy?

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  8. Given, vecomega=2hatkandvecr=2hati+2hatj. Find the linear velocity.

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  9. A metal solid sphere is rotating about an axis passing through its dia...

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  10. Two identical particles moves towards each other with velocity 2v and ...

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  11. A girl is swinging a swing in the sitting position. What will be the e...

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  12. A battery converts

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  13. A body A of mass M while falling vertically downwards under gravity br...

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  14. An annular ring with inner and outer radii R(1) and R(2) is rolling wi...

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  15. The moment of inertia of a uniform semicircular disc of mass M and rad...

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  16. A round uniform body of radius R, mass M and moment of inertia I rolls...

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  17. The moment of inertia of a solid sphere with a density rho and radius ...

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  18. A solid sphere is in rolling motion. In rolling motion a body possesse...

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  19. A solid sphere is rotating freely about its symmetry axis in free spac...

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  20. Three objects, A : (a solid sphere), B : (a thin circular disk) and C ...

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