Question

Rigidity modulus of steel is eta and its Young's modulus is Y. A piece of steel of cross sectional area A is chaged into a wire of length L and area (A)/(10) then :

Answer 1

In the young modulus it only depends upon only one factor that is material of the object.

• As the area of cross section is changed.
• The length of wire L is given.
• But all these factors does not effect the rigidity and Young's modulus of the steel
• As these two are independent of the length and area.
• The both quantities will be effected only if the material will change.
• Therefore η and Y remain same.