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Physics - NLM Question with Solution | TestHub

PhysicsNLMMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A nucleus moving with velocity $\vec{v}$ emits an $α -$ particle. If the velocities of $α -$ particle and the remaining nucleus be $\vec{v_{1}}$ and $\vec{v_{2}}$ and their masses be $m_{1}$ and $m_{2}$ respectively, then

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Answer:

Solution:

From conservation of linear momentum,

${\vec{p}}_{i n i t i a l} = {\vec{p}}_{f i n a l}$

$(m_{1} \vec{v_{1}} + m_{2} \vec{v_{2}}) = (m_{1} + m_{2}) \vec{v}$

$\vec{v}$ must be parallel to $(m_{1} \vec{v_{1}} + m_{2} \vec{v_{2}})$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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