Question
Physics Question on Circular motion
A solid metal ring and a disc of same radius and mass are rotating about their diameters with same angular frequency. The ratio of their respective rotational kinetic energy values is
A
1:1
B
1:2
C
2:1
D
1:4
E
4:1
Answer
2:1
Explanation
Solution
The correct option is (C) : 2:1