Question Number: #Phy4289

A rubber cord of cross sectional area 1 mm2 and unstretched length 10 cm is stretched to 12 cm and then released to project a stone of mass 5 gram.

If Y for rubber = 5 × 108N/m2, then the tension in the rubber cord is

A.) 25 N
B.) 100 N
C.) 50 N
D.) 150 N

Answer is option : B

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