Questions
Assertion : A spring of force constant k is cut into two pieces having lengths in the ratio 1 : 2. The force constant of series combination of the two parts is 3k/2.
Reason : The spring connected in series are represented by k = k1+ k2. [AIIMS 2017]
detailed solution
Correct option is D
As we know, k=Fl⇒k∝1l⇒K1=1+21K =3K and K2=1+22K =3K2 In series, 1k'=1k1+1k2=13K+23K ⇒K'=K So, both Assertion and Reason are incorrect.Talk to our academic expert!
Similar Questions
Two similar springs P and Q have spring constants such that Kp > . They are stretched first by the same amount (case a), then by the same force (case b). The work done by the springs are related as, in case (a) and case (b), respectively.
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
