Passage - II: Two rods of different metals having the same area of cross section A are placed between the two massive walls as shown in Fig. The first rod has a length l coefficient of linear expansion alpha_(1) and Young's modulus Y_(1). The corresponding quantities for second rod are l, alpha_2 and Y_2. The temperature of both the rods is now raised by t^(@) C. Also find the length of the rods at higher temperature

Passage - II: Two rods of different metals having the same area of cr

1.	Passage - II: Two rods of different metals having the same area of cross section A are placed between the two massive walls as shown in Fig. The first rod has a length l coefficient of linear expansion alpha_(1) and Young's modulus Y_(1). The corresponding quantities for second rod are l, alpha_2 and Y_2. The temperature of both the rods is now raised by t^(@) C. Also find the length of the rods at higher temperature
Answer» `I_(0) (1+ alpha_(2) t) (FI_(2) )/( Ay_2) ` `I_(0) (1+ alpha_(1) t) - (FI_(2) )/( Ay_2) ` `I_(0) (1+ alpha_(1) t ) + (FI_2)/( Ay_2)` `I_(0) ( 1+ alpha_(2) t) + ( FI_2)/(Ay_2)`. Answer :B