Question

A particle completes 1.5 revolutions in a circular path of radius 2 cm. The angular displacement of the particle will be – (in radian)

• A. $6\pi$
• B. $3\pi$
• C. $2\pi$
• D. $\pi$

Answer 1

Answer: (B)

$3\pi$

Answer 2

1 revolution mean the angular displacement of $2\pi rad$ $\therefore 1.5$revolution means $1.5 \times 2\pi$= $3\pi rad$.