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Questions  

 A mass m is attached to two springs of same force constant in accordance with the following four configurations. Let T1.,,T2,T3 and T4 be the time
periods respectively. In which combination, the time period is largest
 

a
(i)
b
(ii)
c
(iii)
d
(iv)

detailed solution

Correct option is B

The two springs are in parallelkp=k1+k2=k+k=2k T1=T3=2πm2k The two springs are in series 1ks=1k+1k=2k  or  ks=k2 T2 =2π2mk T4=2πmk

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Two springs of spring constants k1 and k2 are joined in series. The effective spring constant of the-combination is given by:


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