Question

An iron ball of diameter 6cm and is 0.01 mmtoo large to pass through a hole in a brass platewhen the ball and plate are at a temperature of20°C. The temperature at which (both for balland plate) the ball just pass through the hole is(Con = 12x10^-6/1°C; prase=18x10^-6/1°C)1) 68°C 2) 48°C 3) 28°C4) 40°C​

Answer 1

Answer:

An iron ball of diameter 6cm and is 0.01mm too large to pass through a hole in a brass plate when the ball and plate are at a temperature of 20

∘

C. The temperature at which (both for ball and plate) the ball just pass through the hole is:

(α

iron

=12×10

−6

/1

∘

C;α

brass

=18×10

−6

/1

∘

C)