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Define radioactivity. Name various radio...

Define radioactivity. Name various radioactive elements.

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ICSE MODEL PAPER-SAMPLE PAPER 2022-SECTION II
  1. Name any four regions of electromagnetic spectrum in increasing order ...

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  2. Calculate the refractive index of a liquid with respect to air applyin...

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  3. Draw a displacement-distance graph for two waves A and B such that the...

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  4. Give one example of forced vibration.

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  5. State two necessary conditions for hearing a distance echo.

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

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  7. The diagram shows an electrical circuit used for the verification of O...

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  8. Calculate the reading of A when (i) K is closed. (ii) K is open.

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  9. In Mrs. Pinto’s flat there are 6 bulbs of 100 W each, a heater of 2 kW...

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  10. From the diagram given below: What will you observe when- (1)...

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  11. From the diagram given below: What will be the direction of curr...

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  12. From the diagram given below: State the law which explains this ...

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  13. Calculate the amount of heat given out while 400 g of water at 30^@C i...

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  14. A mass m1 of a substance of specific heat capacity c1 at temperature t...

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  15. Draw a labelled diagram of an alternating current generator. Write th...

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  16. Define work function of a metal.

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  17. State two factors upon which the rate of emission of thermions depends...

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  18. Define radioactivity. Name various radioactive elements.

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  19. A radioactive substance is oxidised. What changes would you expect to ...

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  20. Radioactive materials as an alternative source of energy must be wisel...

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