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State the energy changes in the followin...

State the energy changes in the following cases while in use :
A ceiling fan

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The electrical energy changes into mechanical energy.
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ICSE-QUESTION PAPER-2018 -SECTION-II
  1. State the energy changes in the following cases while in use : A cei...

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  2. Derive a relationship between S.I. and C.G.S. unit of work.

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  3. A force acts on a body and displaces it by a distance S in a direction...

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  4. A half metre rod is pivoted at the centre with two weights of 20 gf an...

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  5. A half metre rod is pivoted at the centre with two weights of 20 gf an...

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  6. A half metre rod is pivoted at the centre with two weights of 20 gf an...

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  7. Draw a diagram to show a block and tackle pulley system having a veloc...

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  8. The pulley system drawn lifts a load of 150 N when an effort of 60 N i...

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  9. Is the above pulley system an ideal machine or not?

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  10. A ray of light XY passes through a right angled isosceles prism as sho...

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  11. A ray of light XY passes through a right angled isosceles prism as sho...

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  12. A ray of light XY passes through a right angled isosceles prism as sho...

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  13. An object AB is placed between O and F1 on the principal axis of a con...

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  14. An object is placed at a distance of 12 cm from a convex lens of focal...

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  15. An object is placed at a distance of 12 cm from a convex lens of focal...

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  16. Draw a diagram of a right angled isoscels prism which is used to make ...

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  17. The diagram below shows a wire stretched over a sonometer. Stems of tw...

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  18. The diagram above shows a wire stretched over a sonometer. Stems of tw...

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  19. The diagram above shows a wire stretched over a sonometer. Stems of tw...

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  20. A person is standing at the sea shore. An observer on the ship which i...

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  21. A person is standing at the sea shore. An observer on the ship which i...

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