13. Glass wool is a good
insulator because....
ex:-
porous
atom collidingfrequency
free electrons
low density
plz ans fastly
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glass wool has a number of properties which should make it desirable as a heat insulator . It is light , is prooof against fire and dampness , chemicals , rodents ,etc.., will stand high temperatures , will not decay our deteriorate with use and has low specific heat.
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