(a) Glass
(b) Mild Steel
(c) High carbon steel
(d) Bamboo
Ans :- (a) Glass
Explanation :-
Granite and glass has approx same linearexpansion as shown below.
The coefficient of linear expansion of following at normal temperature is stated as :
| Glass | 8.5*10-6/°C |
| Granite | 8.3*10-6/°C |
| Graphite | 7.9*10-6/°C |
| Gold | 14*10-6/°C |
| Aluminum | 23*10-6/°C |
| Brick | 5*10-6/°C |
