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Asked in JEE Main 23rd Jan 1st Shift 2025 · Q-value, decay and conservation laws
After t=T₁: N₁=(N₀)/2.
n₂ has a half-life (T₁)/3, so it has gone through 3 half-lives: N₂=(N₀)/8.
(N₂)/(N₁)=1/4
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