A particle at the end of a spring executes simple harmonic motion with a period $$t _ { 1 },$$ while the corresponding period for another spring is $$t _ { 2 }$$ If the period of oscillation with the two springs in series is $$T,$$ then
A
$$T ^ { a } = t _ { 1 } ^ { a } + t _ { 2 } ^ { a }$$
B
$$T ^ { -2 } = t _ { 1 } ^ { - 2 } + t _ { 2 } ^ { - 2 }$$
C
$$T = t _ { 1 } + t _ { 2 }$$
D
$$T ^ { -1 } = t _ { 1 } ^ { -1 } + t _ { 2 } ^ { -1 }$$
Correct option is B. $$T ^ { a } = t _ { 1 } ^ { a } + t _ { 2 } ^ { a }$$