If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated?

If there is a circular hole in a metal plate, what happens to the radi

1.	If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated?
Answer» <html><body><p> Increases</p><br/><br/><p>When a metal <a href="https://interviewquestions.tuteehub.com/tag/plate-1156364" style="font-weight:bold;" target="_blank" title="Click to know more about PLATE">PLATE</a> with a <a href="https://interviewquestions.tuteehub.com/tag/circular-916697" style="font-weight:bold;" target="_blank" title="Click to know more about CIRCULAR">CIRCULAR</a> hole at its centre is heated, definitely along with the areal <a href="https://interviewquestions.tuteehub.com/tag/expansion-980011" style="font-weight:bold;" target="_blank" title="Click to know more about EXPANSION">EXPANSION</a> of the plate the diameter of the circular hole also increases. Using the differential equations of <a href="https://interviewquestions.tuteehub.com/tag/coefficients-920961" style="font-weight:bold;" target="_blank" title="Click to know more about COEFFICIENTS">COEFFICIENTS</a> of expansions, we find that the hole radius increases at the same <a href="https://interviewquestions.tuteehub.com/tag/linear-1074458" style="font-weight:bold;" target="_blank" title="Click to know more about LINEAR">LINEAR</a> rate as the metal.</p></body></html>