Thanks Deepak
So ans is B
Potential Energy v/s displacement curve for one dimensional conservative field is shown.Force at A & B is respectively
(A) Positive , Positive
(B) +ve , - ve
(C) - ve, +ve
(D) - ve. - ve
Plz use MAGNIFIER if img is not clear
Sorry :( for inconvenience
we know tat -dU/dx=F
we also know tat dU/dx is the slope of tangent to teh curve at any point x
slope of tangent to teh curve at point A will be negative hence force will be positive
slope of tangent to teh curve at point B will be positive hence force will be negative....