1.

The given plot shows the variation of U, the potential energy of interaction between two particles with the distance r separating them. a) B and C are equilibrium points b) C is a point of stable equilibrium c) The forceof interaction between the twoparticles between D and E d) The forceof interaction between particles is repulsive between points E and F. Which of the absove statements are correct 1) a and b 2) a and d 3) b and d 4) b and c

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :The corresponding <a href="https://interviewquestions.tuteehub.com/tag/f-455800" style="font-weight:bold;" target="_blank" title="Click to know more about F">F</a> - r graph is shown below <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_NEO_CAO_PHY_XI_V01_MP2_C06_SLV_073_S01.png" width="80%"/> <br/> If particle at C is displaced either of the side, the force will bring it <a href="https://interviewquestions.tuteehub.com/tag/back-389278" style="font-weight:bold;" target="_blank" title="Click to know more about BACK">BACK</a> to C. Hence .C. is a <a href="https://interviewquestions.tuteehub.com/tag/point-1157106" style="font-weight:bold;" target="_blank" title="Click to know more about POINT">POINT</a> of stable equlibrium. Force on a particle at D is negative, it is directed towards C and is directed away from D. Hence force of interaction is <a href="https://interviewquestions.tuteehub.com/tag/attractive-887662" style="font-weight:bold;" target="_blank" title="Click to know more about ATTRACTIVE">ATTRACTIVE</a> between C and D while repulsive between D and E.</body></html>


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