A mass of $0.2\,kg$ is attached to the lower end of a massless spring of force-constant $200\, N/m,$ the upper end of which is fixed to a rigid support. Which of the following statements is/are true ?
A mass of $0.2\,kg$ is attached to the lower end of a massless spring of force-constant $200\, N/m,$ the upper end of which is fixed to a rigid support. Which of the following statements is/are true ?
- A
In equilibrium, the spring will be stretched by $1\,cm.$
- B
If the mass is raised till the spring is unstretched state and then released, it will go down by $2\,cm$ before moving upwards.
- C
The frequency of oscillation will be nearly $5\, Hz.$
- D
all of the above
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