Verified Solution • 2025–26 Session moderate

QNEET-2021-Ph-645: NEET 2021 Physics - Class 12 NEET-2021-Ph-645 Solution: The half life of a radioactive nuclide is 100 hours. The…

The half life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be: 2/32/3 1/221/2\sqrt{2} 1/221/2\sqrt{2} 2/32/3

Multiple Choice Options

  • A 232{2 \over {3\sqrt 2 }} 3 2 _ 2 _
  • B 12{1 \over 2} 2 1 _
  • C 122{1 \over {2\sqrt 2 }} 2 2 _ 1 _
  • D 23{2 \over 3} 3 2 _

Step-by-Step Verified Solution

A A 0 = ( 1 2 ) t / T H = ( 1 2 ) 150 / 100 = 1 2 2

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