Question

A rectangular glass baking dish has a cofficient of linear expansion 8×10^-6 per०c when taken from ice water and placed in an oven at 160०c the dish expands 3.86×10-4 in length How long was the dish before it was placed in the oven.​

Answer 1

Answer:

Explanation:

Correct option is

D 156 × 10-6/°C

Ya = Yr - Yg

Yg = 30g = 3 x 8 × 10-6

Ya = 180 x 10 -6 24 x 10-6-156 x

10-6

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Answer 2

Explanation:

Ya = Yr - Yg

Yg = 3ag = 3 × 8 × 10 - 6

Ya = 180 × 10-6 - 24 × 10 -6 = 156 × 10the power6