the ratio of the linear expansivity of copper to that of iron is approximately 1.5. A specimen of iron and a specimen of copper expands by the same amount per unit rise in temperature. The ratio of their length is

Tiamiy09

3 years ago

If α1 is the linear expansivity of copper
And α2 is the linear expansivity of iron
L1 —> length of copper
L2 —> length of iron

α1L1 = α2L2

L1/L2 = α2/α1

Since α1/α2 = 1.5
α2/α1 = 1/1.5
L1/L2 = 0.67

Omt_bby

5 years ago

The explanation is not clear at all

Dave333

4 years ago

It's 1÷1.5
No long cap

Halimat_Titilope

1 year ago

K

Abdulesun

4 years ago

Somebody should explain why this answer is not 1:5 pls.
Even in the All-inclusive Physics, it says 0.67 but they didn't explain.