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Atoms and Nucle...

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  • Question 1
    4 / -1

    The correct order of ionizing capacity of α, β and γ–rays is

  • Question 2
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    If 20 g of a radioactive substance due to radioactive decay reduces to 10 g in 4 minutes, then in what time 80 g of the same substance will reduce to 10 g

  • Question 3
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    The count rate of a Geiger- Muller counter for the radiationof a radioactive material of half life of 30 minutes decreases to 5s–1 after 2 hours. The initial count rate was

  • Question 4
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    What is the respective number of α and β particles emitted in the following radioactive decay 90X200 → 80Y168

  • Question 5
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    An element used for radioactive carbon dating for more than 5600 years is

  • Question 6
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    After two hours, one-sixteenth of the starting amount of a certain radioactive isotope remained undecayed. The half life of the isotope is

  • Question 7
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    N atoms of a radioactive element emit n alpha particles per second. The half life of the element is

  • Question 8
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    A radioactive nucleus 92X235 decays to 91Y231. Which of the following particles are emitted

  • Question 9
    4 / -1

    The radioactive nucleus 7N13 decays to 6C13 through the emission of

  • Question 10
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