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Laws of Motion question

2019 · 12 Apr · Shift 2 · Q65
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Laws of Motion question

2019 · 12 Apr · Shift 2 · Q65

JEE MainPhysicsLaws of MotionMCQ+4 / −1
A spring whose unstretched length is l has a force constant k. The spring is cut into two pieces of unstretched lengths l1 and l2 where, l1 = nl2 and n is an integer. The ratio k1/k2 of the corresponding force constant, k1 and k2 will be :
  1. A
    1n2{1 \over {{n^2}}}n21​
  2. B
    1n{1 \over n}n1​
  3. C
    n2
  4. D
    n
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