Physics, asked by nishadubey0176, 10 months ago

by how much will still bar 1 metre long expand when heated from 25 degree Celsius to 55 degree Celsius the coefficient of volume expansion of a steel is 3 into 10 to the power _5​

Answers

Answered by smartbrainz
0

The increase in the length of the Steel bar will be equal to 3x 10^{6}

Explanation:

  • The coefficient of volume expansion of steel is equal to 3x10^{5} , hence the coefficient of linear expansion of Steel, ā ,will be equal to
  • As we know that the expansion increase of length of a metal dt= l•ā•dt
  • Here the change of temperature dt= 30degree
  • The initial length is equal to 1 metre
  • hence the increase in the length of the Steel when the temperature is considerably changed will be equal to 1x 30x 10^{5}  = 3x 10^{6}
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