When a mass m is attached to a spring, it normally extends by 0.2 m . The mass m is given a slight addition extension and released, then its time peri
When a mass m is attached to a spring, it normally extends by 0.2 m . The mass m is given a slight addition extension and released, then its time period will be
A. `(1)/(pi) s`
B. `(2pi)/(7) s`
C. 7 s
D. `(1)/(7) s`
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