Is it true that P.E. at mean position is zero?

What do you mean by position isomers?

A particle has maximum velocity at mean position and zero velocity at the extreme position. Is it sure test for SHM?

What do you mean by para position ?

What do you mean by meta position?

what do you mean by ortho position ?

At what distance from mean position is K.E equal to P.E?

calculate velocity of a particle executing S.H.M and show that it is maximum at the mean position and minimum (i.e. zero) at the extreme position.

If the e.m.f. of a driving cell be decreased. What will be effect on the positions of zero deflection in a potentionmeter? Explain.

What is the physical meaning of zero vector?