Define:Displament,Velocity,Focal length?
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Hi mate...
here's your answer
Displacement:The shortest distance from initial to the final position is called displacement.It is a vector quantity
Velocity:It is the rate of change of speed with respect to time.
Focal length:the distance between the centre of a lens or curved mirror and its focus.
hope this helps you
Swaranjal:
I can get 4 Mark,Thanks for this answer
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