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A circular disc is rotating about its na...

A circular disc is rotating about its natural axis with angular velocity of 10 rads-l. A second disc of same mass is joined to it coaxially. If the radius of disc is half of the radius of the first, then they together rotate with an angular velocity of

A

`2.5 rads^(-1)`

B

`5 rads^(-1)`

C

`8 rads^(-1)`

D

`6 rads^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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