1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
If a $${}_b^aX$$ species emits first a position, then two a and two b particles and in the last, one a, is also emitted and gets converts to $${}_d^c$$Y species. So correct relation is
A
c = a $$-$$ 12, d = b $$-$$ 5
B
c = a $$-$$ 5, d = b $$-$$ 1
C
c = a $$-$$ 6, d = b $$-$$ 0
D
c = a $$-$$ 4, d = b $$-$$ 2
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A 300 grams radioactive sample at initial half life is 3 hours. After 18 hours remaining quantity
A
4.68 gram
B
2.34 gram
C
3.34 gram
D
9.37 gram
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