A and B are two points on a uniform metal ring whose centre is O. The angle AOB = theta A and B are maintained at two different constant temperatures. When theta=180^(@), the rate of total heat flow from A to B is 1.2W. When theta=90^(@) this rate will be

A and B are two points on a uniform metal ring whose centre is O. The

1.	A and B are two points on a uniform metal ring whose centre is O. The angle AOB = theta A and B are maintained at two different constant temperatures. When theta=180^(@), the rate of total heat flow from A to B is 1.2W. When theta=90^(@) this rate will be
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