Question 235 of 280
This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1: When moment of inertia of a body rotating about an axis with angular speed increases, its angular momentum is unchanged but the kinetic energy increases if there is no torque applied on it.
Statement 2: , kinetic energy of rotation
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Answer: (B) Statement 1 is false, Statement 2 is true.
As so increases with increase in . Kinetic energy depends on an angular velocity ' ' and moment of inertia of the body .
i.e., rotational
i.e., rotational