Questions
An iron ball of diameter 6cm and is 0.01 mm too large to pass through a hole in a brass plate when the ball and plate are at a temperature of 200C. The temperature at which (both for ball and plate) the ball just pass through the hole is (α iron = 12 x 10-6/0C; αbrass = 18 x 10-6/0C)
detailed solution
Correct option is B
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