A bimetallic strip is formed out of two identical strips, one of copper and other of brass. The coefficients of linear expansion of the two metals are $${{\alpha }_{C}}$$ and $${{\alpha }_{B}}$$. On heating, the temperature of the strip goes up by DT and the strip bends to form an arc of radius of curvature R. Then R is [IIT-JEE (Screening) 1999]

Question

TuteeHUB · Accepted Answer

NA

TuteeHUB · Answer

Proportional to DT

TuteeHUB · Answer

Inversely proportional to DT

TuteeHUB · Answer

Proportional to $$|{{\alpha }_{B}}-{{\alpha }_{C}}|$$

TuteeHUB · Answer

Inversely proportional to $$|{{\alpha }_{B}}-{{\alpha }_{C}}|$$

1.	A bimetallic strip is formed out of two identical strips, one of copper and other of brass. The coefficients of linear expansion of the two metals are \[{{\alpha }_{C}}\] and \[{{\alpha }_{B}}\]. On heating, the temperature of the strip goes up by DT and the strip bends to form an arc of radius of curvature R. Then R is [IIT-JEE (Screening) 1999]
A.	Proportional to DT
B.	Inversely proportional to DT
C.	Proportional to \[\|{{\alpha }_{B}}-{{\alpha }_{C}}\|\]
D.	Inversely proportional to \[\|{{\alpha }_{B}}-{{\alpha }_{C}}\|\]
Answer» E.

Discussion

No Comment Found

Related MCQs

Reply to Comment