JEE Mains 29-Jan-2023 Shift 2 Solved Paper

Section: Physics

Question : 1 of 90

Marks: +1, -0

Substance A has atomic mass number 16 and half life of 1 day. Another substance B has atomic mass number 32 and half life of ‌

day. If both A and B simultaneously start undergo radio activity at the same time with initial mass 320g each, how many total atoms of A and B combined would be left after 2 days.

[29-Jan-2023 Shift 2]

3.38×1024
6.76×1024
6.76×1023
1.69×1024

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