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1.
Two wires of the same length and same material but radii in the ratio of 1 : 2 are stretched by unequal forces to produce equal elongation. The ratio of the two forces is
2.
A steel wire of cross-sectional area 
can withstand a maximum strain of 
. Young's modulus of steel is 
. The maximum mass the wire can hold is
can withstand a maximum strain of . Young's modulus of steel is . The maximum mass the wire can hold is
3.
In the Young's experiment, If length of wire and radius both are doubled then the value of 
will become
will become