Question

What will be the value of β for a solid for which α has a value of 2 x 10-5 K-1 :
(a) 2 x 10-5 K-1 (b) 6 x 10-5 K-1 (c) 8 x 10-5 K-1 (d) 8 x 10-15 K-1

Answer 1

Answer:

b 6×10^-5k^-1

Explanation:

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Answer 2

There are three types of coefficient of expansions

1) Coefficient of linear expansion (α)

2) Coefficient of superficial (or) areal expansion (β)

3) Coefficient of cubical expansion ($\gamma$)

Given,

coefficient of linear expansion of solid,  α = $(2*10^{-5} )K^{-1}$

We know that relation between α & β as

β = 2α

⇒ β $= 2*(2*10^{-5})$

⇒ β = $(4*10^{-5}) K^{-1}$

∴ Coefficient of superficial expansion β = ($4*10^{-5}$)$K^{-1}$

But in the given options there is no option matching with the answer. Please do the option once.

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