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In arrangement given in figure, if the block of mass m is displaced, the frequency is given by
  • A$n = \frac{1}{{2\pi }}\sqrt {\left( {\frac{{{k_1} - {k_2}}}{m}} \right)} $
  • B$n = \frac{1}{{2\pi }}\sqrt {\left( {\frac{{{k_1} + {k_2}}}{m}} \right)} $
  • C$n = \frac{1}{{2\pi }}\sqrt {\left( {\frac{m}{{{k_1} + {k_2}}}} \right)} $
  • D$n = \frac{1}{{2\pi }}\sqrt {\left( {\frac{m}{{{k_1} - {k_2}}}} \right)} $
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