Q.

Fermat’s spiral iv. r=Ɵ1/2

A. 1, i; 2, ii; 3, iii; 4, iv
B. 1, ii; 2, iii; 3, i; 4, iv
C. 1, iv; 2, i; 3, ii; 4, iii
D. 1, ii; 2, iv; 3, iii; 4, i
Answer» C. 1, iv; 2, i; 3, ii; 4, iii
Explanation: the line joining any point on the curve with the pole is called radius vector. angle between radius vector and the line in its initial position is called vectorial angle.
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