PhysicsAn iron ball of diameter 6cm and is 0.01 mm too large to pass through a hole in a brass plate when the ball and plate are at a temperature of 200C. The temperature at which (both for ball and plate) the ball just pass through the hole isαiron =12×10−6/10C;αbrass =18×10−6/10C

An iron ball of diameter 6cm and is 0.01 mm too large to pass through a hole in a brass plate when the ball and plate are at a temperature of 200C. The temperature at which (both for ball and plate) the ball just pass through the hole is
αiron =12×106/10C;αbrass =18×106/10C

  1. A

    680C

  2. B

    480C

  3. C

    280C

  4. D

    400C

    Fill Out the Form for Expert Academic Guidance!l



    +91



    Live ClassesBooksTest SeriesSelf Learning



    Verify OTP Code (required)

    I agree to the terms and conditions and privacy policy.

    Solution:

    Δ= α ΔtbαbFeαFet2t1=Δ5.99×18×1066×12×106t220=0.001;36(t20)=1000t=480C

    Chat on WhatsApp Call Infinity Learn

      Talk to our academic expert!



      +91


      Live ClassesBooksTest SeriesSelf Learning




      Verify OTP Code (required)

      I agree to the terms and conditions and privacy policy.