MDCAT Physics MCQ #1817

A spherical fog droplet of radius 'r' falls with a terminal velocity of 0.2 m/s. What is the terminal velocity of a droplet with radius '2r'?

MDCAT Physics MCQ #1817

  1. Question 1

    Q1. A spherical fog droplet of radius 'r' falls with a terminal velocity of 0.2 m/s. What is the terminal velocity of a droplet with radius '2r'?

    • A) 0.2 m/s
    • B) 0.4 m/s
    • C) 0.1 m/s
    • D) 0.8 m/s

    Answer: 0.8 m/s

    Explanation: Terminal velocity is directly proportional to the square of the radius. Doubling the radius increases the velocity by a factor of four.