In a smooth hollow thin tube, a block of same mass as that of tube is released, as shown in the figure. When it is slightly disturbed, it moves towards right. By the time, the block reaches the right end of the tube, then the displacement of the tube will be (where ' 
' is mean radius of tube). Assume that the tube remains in vertical plane.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let the tube displaced by 
towards left, then block will be displaced by 
towards
right;
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