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Beyond the elastic limit a material will not ………when the deforming force is removed.
a) return to its original dimensions
b) will break
c) permanently deforms    

d) all of these

d

Hooke’s Law:


According to Hooke’s law, When a spring is stretched or compressed the extension or compression is………….to the applied force.
a) equal to                            

b) directly proportional
c) none                 

d) inversely proportional

b


d



Within the elastic limits the extensions directly proportional to the restoring force this is according to ………..
a) young’s modulus                           

b) Pascal law
c)
Hooke’s law                   

d) strain


c

In Hooke’s law the force constant K has unit of
a) Nm                    

b) N/m
c) Nm2                                  

b) N/m2 

b