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Why is radioactivity considered to be a ...

Why is radioactivity considered to be a nuclear phenomenon?

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During radioactivity, the change occurs in the nucleus of the radioactive element. Hence, it is considered to be a nuclear phenomenon.
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ICSE-SAMPLE QUESTION PAPER 2-SECTION-B
  1. Why is radioactivity considered to be a nuclear phenomenon?

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  2. Show that the sum of kinetic energy and potential energy (ie, total me...

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  3. A uniform metre rod is balanced at the 70 cm mark by suspending a weig...

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  4. Draw a diagram of a pulley system of velocity ratio 4. Calculate its m...

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  5. What is understood by lateral displacement? State two factors on which...

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  6. An object is kept at a distance of 15 cm from a convex lens of focal l...

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  7. Write two properties common to all the electromagnetic radiations.

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  8. Name two sources, each of infrared radiations and ultraviolet radiatio...

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  9. A vibrating tuning fork is placed over the mouth of a burette filled w...

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  10. A vibrating tuning fork is placed over the mouth of a burette filled w...

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  11. Define the power of a lens.

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  12. A child is using a spectacle with power of -2.5 D. What is meant by th...

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  13. Find the focal length of the lens used.

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  14. A man standing in front of a wall produces a sound and hears an echo a...

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  15. What characteristics should a fuse wire have?

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  16. Name two factors on which the internal resistance of a cell depends an...

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  17. In the circuit diagram given below, a cell of 9 V and internal resista...

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  18. In the circuit diagram given below, a cell of 9 V and internal resista...

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  19. In the circuit diagram given below, a cell of 9 V and internal resista...

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  20. In the circuit diagram given below, a cell of 9 V and internal resista...

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  21. Define latent heat of fusion of ice.

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