Question

"A bird flapping its wings circles around a clock tower". Which part of the motion is periodic and oscillatory ?

• A. Bird's motion is oscillatory while wing flapping was periodic
• B. Both bird's motion and wing flapping were oscillatory
• C. Bird's motion is periodic while wing flapping was oscillatory
• D. Both bird's motion and wing flapping are non-oscillatory

Answer 1

The correct option is C Bird's motion is periodic while wing flapping was oscillatory

Flapping of wings was oscillatory, since it constitutes to and fro motion, while birds motion along a circle is periodic
Thus the correct option is (c)