Questions
A weightless spring of length 60 cm and force constant 200 N/m is kept straight and unstretched on a smooth horizontal table and its ends are rigidly fixed. A mass of 0.25 kg is attached at the middle of the spring and is slightly displaced along the length. The time period of the oscillation of the mass is
detailed solution
Correct option is A
System is equivalent to parallel combination of springs ∴Keq=K1+K2=400 andT=2πmKeq=2π0.25400=π20Talk to our academic expert!
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