Oscillations Part 2

A mass 0.9‌kg, attached to a horizontal spring, executes SHM with an amplitude A1. When this mass passes through its mean position, then a smaller mass of 124g is placed over it and both masses move together with amplitude A2. If the ratio ‌

A1

A2

is ‌

α

α−1

, then the value of α will be ________.