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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsRadioactivityEasy2 minPYQ_2020

PhysicsEasysingle choice

When U 238 nucleus, originally at rest, decays by emitting an alpha particle having a speed $u$ , the recoil speed of the residual nucleus is

Options:

Answer:

Solution:

Apply conservation of linear momentum

$= 0 = 4 u - 234 v$

$\Rightarrow v = \frac{4 u}{234}$
The residual nucleus will recoil with a velocity of $\frac{4 u}{234}$ unit
Recoil speed of residual nucleus is $\frac{4 u}{234}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Radioactivity

⏱ 2mℹ️ Source: PYQ_2020

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