A rain drop of radius r falls in air with a terminal speed v t . What is the terminal…

Physics · JEE Main · NTA ExamsProperties of Solids and Liquids

A rain drop of radius r falls in air with a terminal speed vt. What is the terminal speed of a rain drop of radius 2r ?
  1. vt/2
  2. vt
  3. 2vt
  4. 4vt

Answer

(D) 4v t

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