Question

The value of g is _____ at poles

• A. Maximum
• B. Minimum
• C. same
• D. cant say
  

Answer 1

The correct option is A Maximum

Acceleration due to gravity at latitude $\lambda$ is $g^{\prime }=g-w^{2}R\cos {}^{\prime }\lambda$ [W=angular velocity, R=radius of the Earth]

At poles $\lambda =90°\therefore \cos {}^2\lambda =0\therefore g^{\prime }=g_{max}=g$

The value of g is $A$ maximum at poles.