When a strip made or iron `(alpha_(1))` and copper `(alpha_(2)),(alpha_(2) gt alpha_(1))` is heated

When a strip made of iron (alpha) and copper (alpha_2) (alpha_2>alpha_1 ) is heated (1) Its length does not change (2) It gets twisted (3) It bends with iron on concave side (4) It bends with iron on convex side

A bimetallic strip of thickness d and length L is clamped at one end at temperature t_(1) . Find the radius of curvature of the strip if it consists of two different metals of expansivity alpha_(1) and alpha_(2) (alpha_(1) gt alpha_(2) ) when its temperature rises to t_(2) "^(@)C .

A bimetallic strip of thickness d and length L is clamped at one end at temperature t_(1) . Find the radius of curvature of the strip if it consists of two different metals of expansivity alpha_(1) and alpha_(2) (alpha_(1) gt alpha_(2) ) when its temperature rises to t_(2) "^(@)C .

A bimetallic strip of thickness d and length L is clamped at one end at temperature t_(1) . Find the radius of curvature of the strip if it consists of two different metals of expansivity alpha_(1) and alpha_(2) (alpha_(1) gt alpha_(2) ) when its temperature rises to t_(2) "^(@)C .

When the two rods having expansion cofficient alpha_(1), alpha_(2) (alpha_(2) gt alpha_(1)) and width d are heated then the radius of the rod after expansion. R=(d)/((alpha_(2)-alpha_(1))Delta T)

If 1,alpha_(1),alpha_(2),………..,alpha_(n-1) are nk^(th) roots of unity, then the value of (1-alpha_(1))(1-alpha_(2))(1-alpha_(3))……(1-alpha_(n-1)) is equal to

A bimetalic strip is made of two strips A and B, having co-efficeint of linear expansion as alpha_(A) and alpha_(B) . If alpha_(A) gt alpha_(B) which of the following describes the behavior fo the metallic strip when heated?

A bimetallic is made of two strips A and B having coefficients of linear expansion alpha_(4) and alpha_(B) . If alpha_(A) lt alpha_(B) , then on heating, the strip will

If 1,alpha_(1),alpha_(2),…………….,alpha_(n-1) are n^(th) roots of unity and n is an even natural number, then (1+alpha_(1))(1+alpha_(2))(1+alpha_(3))……(1+alpha_(n-1)) equals