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Give one example of each when : Electr...

Give one example of each when :
Electrical energy changes into sound energy.

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ICSE-SAMPLE QUESTION PAPER 1-SECTION .B.
  1. Give one example of each when : Electrical energy changes into sound...

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  2. The figure below shows a simple pendulum of mass 200 g. It is displace...

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  3. The figure below shows a simple pendulum of mass 200 g. It is displace...

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  4. The figure below shows a simple pendulum of mass 200 g. It is displace...

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  5. With reference to the direction of action, how does a centripetal forc...

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  6. Is centrifugal force the force of reaction of centripetal force ?

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  7. Compare the magnitudes of centripetal and centrifugal force.

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  8. A block and tackle system of pulleys has velocity ratio 4. Draw a ne...

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  9. A block and tackle system of pulleys has velocity ratio 4. What will...

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  10. A diver in water looks obliquely at an object AB in air. Show the...

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  11. Complete the path of the ray AB through the glass prism in PQR till it...

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  12. A lens of focal length 20 cm forms an inverted image at a distance 60 ...

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  13. A lens of focal length 20 cm forms an inverted image at a distance 60 ...

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  14. A lens of focal length 20 cm forms an inverted image at a distance 60 ...

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  15. Give reasons for the following: During the day : Clouds appear whi...

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  16. Name the system which enables us to locate underwater objects by trans...

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  17. What are acoustically measurable quantities related to pitch and loudn...

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  18. When a tuning fork (vibrating) is held close to ear, one hears a faint...

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  19. A man standing in front of a vertical cliff fires a gun. He hears the ...

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  20. Superconductors are:

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  21. Calculate the current drawn by an appliance rated 110 W, 220 V when co...

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