# When a block of mass M is suspended by a long wire of length L , The length of the wire becomes (L+l ) . The elastic potential energy stored in the extended wire is : Option 1)Mgl Option 2)MgL Option 3)1/2 MglOption 4)1/ MgL

Option 1)

Mgl

Option 2)

MgL

Option 3)

1/2 Mgl

Option 4)

1/ MgL

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