1.

The system shown consists of two springs. If the temperature of the rod is increased by Delta T. the compression in the left spring is (assume the thermal stress in the rod is zero)

Answer»

`( L alpha( DELTA T) )/( 4)`
`( 3 L alpha ( Delta T) )/( 4)`
`( L alpha( Delta T) ) /( 3)`
zero

Answer :B


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