wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Potential energy U(x) and associated force F(x) bear the relation F(x)=dU(x)dx. Dependence of potential energy of a two-particle system on the separation x between them is shown in the following figure.


Which of the following graphs shows the correct variation of force F(x) with x?

A
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A
F(x)=dU(x)/dx= slope of U(x)x curve.
Initially, slope is constant and positive until x=a. So, force is constant (negative) till that point. After that the slope of Ux curve becomes zero, so the force becomes zero after x=a.

Option (a) matches this description.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Conservative Forces and Potential Energy
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon