Physics Rotational & Circular Motion DUHS 2023
PMDC Verified Question 41 of 95
The ratio between linear velocity and radius equals to:
A
Angular displacement
B
Angular velocity
C
Angular acceleration
D
Angular momentum
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Angular velocity
Concept:

Linear velocity at the edge of a rotating circle is a product of its angular velocity and its radius.

Formula:

$$ v = r\omega $$

Solution:

  • We are asked to find the ratio of linear velocity (v) to the radius (r).
  • Divide both sides of the standard formula by r: \( \frac{v}{r} = \omega \).
  • \( \omega \) physically represents the Angular velocity.


Why other options are incorrect:

  • Option A is the ratio of arc length to radius (\( S/r \)).
  • Option C is the ratio of linear acceleration to radius (\( a/r \)).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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