A wheel is rotating freely with an angular speed 
on a shaft. The moment of inertia of the wheel is 1 and the moment of inertia of the shaft is negligible. Another wheel of moment of inertia 
initially at rest is suddenly coupled to the same shaft. The resultant fractional loss in the kinetic energy of the system is
A
B
C
0
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2020
Fractional loss 
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