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A circular ring of radius 5 cm is suspen...

A circular ring of radius 5 cm is suspended horizontally from a point 12 cm vertically above its centre by 6 strings attached to its circumference at equal intervals. The cosine of the angle between two consecutive ring is

A

`1/2`

B

`12/13`

C

`313/338`

D

none of these of these

Text Solution

Verified by Experts

The correct Answer is:
C
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