The rotational kinetic energy of two bodies of moment of inertia `9 kg m^(2)` and `1kg m^(2)` are same . The ratio of their angular momenta isA. `1:3`B. `1:9`C. `9:1`D. `3:1`

The rotational kinetic energy of two bodies of moment of inertia `9 kg

1.	The rotational kinetic energy of two bodies of moment of inertia `9 kg m^(2)` and `1kg m^(2)` are same . The ratio of their angular momenta isA. `1:3`B. `1:9`C. `9:1`D. `3:1`
Answer» Correct Answer - D `K.E._(1)=K.E._(2)` `(1)/(2)L_(1)=(1)/(2)L_(2)` `therefore ((L_(1))/(L_(2)))^(2)=(I_(1))/(I_(2))` `(L_(1))/(L_(2))=sqrt((I_(1))/(I_(2)))=sqrt((9)/(1))=(3)/(1)`

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The rotational kinetic energy of two bodies of moment of inertia `9 kg m^(2)` and `1kg m^(2)` are same . The ratio of their angular momenta isA. `1:3`B. `1:9`C. `9:1`D. `3:1`

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