MCQ
Consider the following two equations :
$\text{L}=\text{I}\omega$
$\frac{\text{dL}}{\text{dt}}=\Gamma$
In noninertial frames :
  • A
    Both $A$ and $B$ are true.
  • $A$ is true but $B$ is false.
  • C
    $B$ is true but $A$ is false.
  • D
    Both $A$ and $B$ are false.

Answer

Correct option: B.
$A$ is true but $B$ is false.
In non$-$inertial frames, $\frac{\text{dL}}{\text{dt}}=\Gamma_{\text{Total}}$
Here, $\Gamma_{\text{Total}}$ is the total torque on the system due to all the external forces acting on the system. So, equation $(B)$ is not true as in non$-$inertial frames, pseudo force must be applied to study the motion of the object.

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