A glass window is to be fit in an aluminium frame. The temperature on the working day is 40°c and the glass window measures exactly 20 cm xx 30cm. [ alpha_("glass") = 9 xx 10^(-6)//^(@) C, alpha_("aluminium") = 24 xx 10^(-6)//^(@) C]. The size of the aluminium frame is _. so that there is no stress on the glass in winter even if the temperature drops to 0^(@) C?

A glass window is to be fit in an aluminium frame. The temperature on

1.	A glass window is to be fit in an aluminium frame. The temperature on the working day is 40°c and the glass window measures exactly 20 cm xx 30cm. [ alpha_("glass") = 9 xx 10^(-6)//^(@) C, alpha_("aluminium") = 24 xx 10^(-6)//^(@) C]. The size of the aluminium frame is _. so that there is no stress on the glass in winter even if the temperature drops to 0^(@) C?
Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/20-287209" style="font-weight:bold;" target="_blank" title="Click to know more about 20">20</a>.012 cm <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> <a href="https://interviewquestions.tuteehub.com/tag/30-304807" style="font-weight:bold;" target="_blank" title="Click to know more about 30">30</a>.01 cm`<br/>`10 cm xx 20 cm`<br/>`30 cm xx 20 cm`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/15-274069" style="font-weight:bold;" target="_blank" title="Click to know more about 15">15</a> cm xx 30 cm`</p>Answer :A</body></html>