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In logarithmic Spiral, the radius vectors are in arithmetical progression.

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In logarithmic Spiral, the radius vectors are in arithmetical progression.

(a) True

(b) False

This question was posed to me in semester exam.

Question is from Construction of Spiral in chapter Geometrical Construction of Engineering Drawing

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Correct choice is (b) False

The best explanation: In the logarithmic Spiral, the values of vectorial angles are in arithmetical progression and radius vectors are in the geometrical progression that is the lengths of consecutive radius vectors enclosing equal angles are always constant.

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