Banking Physics Heat Question Bank Heat

  • question_answer Two holes of unequal diameters \[{{d}_{1}}\] and \[{{d}_{2}}\]\[({{d}_{1}}>{{d}_{2}})\]are cut in a metal sheet. If the sheet is heated,

    A)              both \[{{d}_{1}}\] and \[{{d}_{2}}\] will decrease

    B)  both \[{{d}_{1}}\] and \[{{d}_{2}}\] will increase  

    C)  \[{{d}_{1}}\] will increase, \[{{d}_{2}}\] will decrease

    D)  \[{{d}_{1}}\]will decrease, \[{{d}_{2}}\] will increase

    Correct Answer: B

    Solution :

     When a body is heated, the distance between any two points on it increases. The increase is in the same ratio for any set of two point.


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