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The variation of lengths of two moles ro...

The variation of lengths of two moles rods `A` and `B` with change in temperature is shown in figure . The ratio of `(alpha_(a))/(alpha_(B))` is :-

A

`(3)/(2)`

B

`(2)/(3)`

C

`(4)/(3)`

D

`(3)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
` l= l_(0) (1+alphaDeltaT) implies l-l_(0) = l_(0)alphaDeltaT`
`implies (l_(0)alpha_(A)DeltaT)/(l_(0)alpha_(B)DeltaT) = (104-100)/(106-100) = (4)/(6) implies (alpha_(A))/(alpha_(B)) = (2)/(3)`
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ALLEN -GEOMETRICAL OPTICS-EXERCISE -01
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  11. The coefficient of apparent expansion of a liquid when determined usin...

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