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Question: Answered & Verified by Expert
A nucleus disintegrates into two nuclear parts which have their velocities in the ratio $2: 1$. The ratio of their nuclear sizes will be
PhysicsNuclear PhysicsJEE MainJEE Main 2004
Options:
  • A
    $2^{1 / 3}: 1$
  • B
    $1: 3^{1 / 2}$
  • C
    $3^{1 / 2}: 1$
  • D
    $1: 2^{1 / 3}$
Solution:
2369 Upvotes Verified Answer
The correct answer is:
$1: 3^{1 / 2}$
$\frac{R_1}{R_2}=\left(\frac{m_2}{2 m_2}\right)^{1 / 3}$
$\Rightarrow \frac{R_1}{R_2}=1: 2^{1 / 3}$

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