A massless spring, having force constant k, oscillates with a fre… - Vidyadip

MCQ

A massless spring, having force constant k, oscillates with a frequency n when a mass m is suspended from it. The spring is cut into two equal halves and a mass 2m is suspended from one of the parts. The frequency of oscillation will now be For a simple pendulum the graph between length and time period will be …….

✓
n
B
$n \sqrt{2}$
C
$\frac{n}{\sqrt{2}}$
D
2n

✓

Answer

Correct option: A.

n

n
solution :
$n=\frac{1}{2 \pi} \sqrt{\frac{k}{m}} ; \quad n^{\prime}=\frac{1}{2} \sqrt{\frac{2}{2}}=n$

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