The coefficient of linear expansion for a certain metal varies with temperatures as alpha (T). If L_(0)is the initial length of the metal and the temperature of the metal is changed from T_(0) to (T_(0) gt T), then

The coefficient of linear expansion for a certain metal varies with te

1.	The coefficient of linear expansion for a certain metal varies with temperatures as alpha (T). If L_(0)is the initial length of the metal and the temperature of the metal is changed from T_(0) to (T_(0) gt T), then
Answer» `L= L_(0) int_(T_0)^( T) ALPHA (T) dt``L= L_(0) [ 1+ int_(T_0)^(T) alpha (T) d T]` `L= L_(0) [ L- int_(T_0)^(T) alpha (T) d T]` Answer :B