A mass of 0.2kg 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?
This question has multiple correct options
A
In equilibrium, the spring will be stretched by 1cm.
B
If the mass is raised till the spring is unstretched state and then released, it will go down by 2cm
before moving upwards.
C
The frequency of oscillation will be nearly 5 Hz
D
If the system is taken to the moon, the frequency of oscillation will be the same as on the earth.