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The narrow tube AC forms a quarter circl...

The narrow tube AC forms a quarter circles in a vertical plane. A ball B has an area of cross-section slighly smaller than that of the tube and can move without friction through it. B is placed at A and displaced slightly. During the motion from A to C it will :

A

always be in contact with the inner wall of the tube

B

always be in contact the outer wall of the tube

C

intially be in contant with the inner wall and later with the outer wall

D

intially be in contact with the and later with the inner wall

Text Solution

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The correct Answer is:
c
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