WBJEE · Physics · Rotational Motion
Two metallic spheres of equal outer radii are found to have same moment of inertia about their respective diameters. Then which of the following statement(s) is/are true?
- A The two spheres have equal masses
- B The ratio of their masses is nearly \(1.67: 1\)
- C The spheres are made of different materials
- D Their rotational kinetic energies will be equal when rotated with equal uniform angular speed about their respective diameters
Answer & Solution
Correct Answer
(D) Their rotational kinetic energies will be equal when rotated with equal uniform angular speed about their respective diameters
Step-by-step Solution
Detailed explanation
Hint: Inner radius is not given \(\therefore\) only option (D) is correct
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