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NEET 1999 (AIPMT) · Kinetic Energy & Momentum

Kinetic Energy & Momentum question from NEET 1999 (AIPMT)

Q18NEET 1999 · AIPMTEasy

Kinetic Energy & Momentum

Two bodies with kinetic energies in the ratio $4 : 1$ are moving with equal linear momentum. The ratio of their masses is

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Answer: (d)

Equal momentum: $K = \frac{p^2}{2m} \Rightarrow m \propto \frac{1}{K}$ .
$\frac{m_1}{m_2} = \frac{K_2}{K_1} = \frac{1}{4}$
So the answer is (d) $1 : 4$ .

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