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JEE Advanced 2021 Full Test 1 Paper 1

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SECTION – C (Numerical Answer Type)
This section contains 06 questions. The answer to each question is a NUMERICAL VALUE. For each question, enter the correct numerical value (in decimal notation, truncated/rounded-off to the second decimal place; e.g. XXXXX.XX).
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Question : 15 of 54
 
Marks: +1, -0
A radioactive nucleus X decays into a nucleus Y which itself is radioactive. Y decays into a stable nucleus Z.
X
Half‌Life
─────▸
=
3
2
‌hour
Y
Half‌Life
─────▸
=
3
8
‌hour
Z
Initially the sample has only nuclei X& number count of Y is zero. Find time (in minutes) when number of count for Y is maximum.
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