Duration: 4:30

13 views

1

A rain drop of radius \( 0.3 \mathrm{~mm} \) has a terminal velocity in air \( 1 \mathrm{~ms}^{-1} \). The viscosity of air is \( 18 \times 10^{-5} \) poise. Find the viscous force on the rain drops.
(a) \( 5.02 \times 10^{-7} \mathrm{~N} \)
(b) \( 1.018 \times 10^{-7} \mathrm{~N} \)
(c) \( 1.05 \times 10^{-7} \mathrm{~N} \)
(d) \( 2.058 \times 10^{-7} \mathrm{~N} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live