The period of oscillation of a mass $M$ suspended from a spring of negligible mass is $T$. If along with it another mass $M$ is also suspended , the period of oscillation will now be
The period of oscillation of a mass $M$ suspended from a spring of negligible mass is $T$. If along with it another mass $M$ is also suspended , the period of oscillation will now be
- [AIPMT 2010]
- A
$T$
- B
$\frac{T}{{\sqrt 2 }}$
- C
$2T$
- D
$\sqrt 2 $$T$
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- [JEE MAIN 2021]