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কোণিক ভরবেগ (angular momentum ) - এর ক্ষেত্রে কোনটি সঠিক?

\underset{L}{\to} = \underset{r}{\to} \times \underset{p}{\to}

\underset{L}{\to} = \underset{p}{\to} . \underset{r}{\to}

\underset{L}{\to} = \underset{p}{\to} \times \underset{r}{\to}

\underset{r}{\to} . \underset{p}{\to}

ANS : 1

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