Force constants of two wires A and B of the same material are k and 2k, respectively. If the two wiresare stretched equally, then the ratio of work done in stretching WAWB is 

Force constants of two wires A and B of the same material are k and 2k, respectively. If the two wires
are stretched equally, then the ratio of work done in stretching WAWB is 

  1. A

    13

  2. B

    12

  3. C

    32

  4. D

    14

    Register to Get Free Mock Test and Study Material

    +91

    Verify OTP Code (required)

    I agree to the terms and conditions and privacy policy.

    Solution:

    Work done in a stretched wire, W=12kx2

    Given,    kA=k and kB=2k

      WA=12kx2

    and   WB=12(2k)x2=kx2

    Hence, the ratio of work done in stretching the wires.

    WAWB=(1/2)kx2kx2WAWB=12

    Chat on WhatsApp Call Infinity Learn

      Register to Get Free Mock Test and Study Material

      +91

      Verify OTP Code (required)

      I agree to the terms and conditions and privacy policy.