What will be the force constant of the spring system shown in the figure?
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a
[1k1+1k2]
b
[12k1+1k2]-1
c
[1k1+1k2]-1
d
[12k1+1k2]
answer is B.
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Detailed Solution
For parallel combination of first two identical springs of spring constant k1, effective spring constantKp = 2k1Now, springs of spring constants kp and k2 are joined in series, so the force constant or the spring constant of the system is1KS = 1KP+1K2 = (12k1+1k2)-1