a light spiral spring is fixed at the top and a mass of 200gms is suspended from its lower end so that it has of 20cm find period of oscillations

To find the period of oscillation of a mass-spring system, we need to know the mass of the object and the spring constant. However, in this case, you have not provided the spring constant. Without the value of the spring constant or any additional information, we cannot calculate the period of oscillation.

The period of oscillation of a mass-spring system can be calculated using the following formula:

T = 2π√(m/k)

Where:
T = Period of oscillation
m = Mass of the object
k = Spring constant

In order to calculate the period of oscillation, we need the value of the spring constant. Please provide the value of the spring constant or any additional information related to it.