The coefficient of linear expansion of ordinary glass is three times that of Pyrex glass. An ordinary glass rod and a Pyrex glas
s rod of equal lengths at room temperature are dropped into boiling water. The change in length of the ordinary glass rod will be ___________ the change in length of the Pyrex glass rod. a. 1/3 b. 3 times
c. equal to
d. 1/9
e. 9 times