At 20°C an Aluminum Ring Has an Inner Diameter of 5.000

Multiple Choice

At 20°C an aluminum ring has an inner diameter of 5.000 cm,and a brass rod has a diameter of 5.020 cm.Keeping the brass rod at 20°C,which of the following temperatures of the ring will allow the ring to just slip over the brass rod? (α_Al = 2.4 × 10−⁵ /°C,α_brass = 1.9 × 10−⁵/°C )

A) 111°C
B) 187°C
C) 228°C
D) 437°C