Home
Class 12
PHYSICS
A drop of radius 2xx10^(-5) and density ...

A drop of radius `2xx10^(-5)` and density `1.2xx10^(3)kg//m^(3)` falls through air. The viscosity of air is `1.8xx10^(-5) N s//m^(2).` Neglecting buoyancy due to air, the terminal speed of the drop is

A

`2.8 cm/s`

B

`3.8 cm/s`

C

`4.8 cm/s`

D

`5.8 cm/s`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

What will be the approximate terminal velocity of a rain drop of diamteter 1.8xx 10^(-3)m, when density of rain water ~~10^(3)kgm^(-3) and the co-efficient of viscosity of air ~~1.8xx10^(-5)Nsm^(-2) ? (Neglect buoyancy of air. )

A rain drop of radius 0.5 mm has a terminal velocity in air 2 m/s. If the coefficient of viscosity of air is 1.8xx10^(-4) poise, the viscous drag on the rain drop will be

Water drop of radius 0.3 mm is falling through air is 18 xx 10^(-5) kg m^(-1)V^(-1) , then the viscous force acting on the drop will be

Solve the following example : The density of a metal is 1.8 xx 10^3 kg//m^3 . Find the relative density of the metal.

A wire of density 9 xx 10^(3) kg//m^(3) is stretched between two clamps 1 m apart and is subjected to an extension of 4.9 xx 10^(-4) m . The lowest frequency of transverse vibration in the wire is (Y = 9 xx 10^(10) N//m^(2))

The Young's modulus of a material is 2xx10^(11)N//m^(2) and its elastic limit is 1xx10^(8) N//m^(2). For a wire of 1 m length of this material, the maximum elongation achievable is

Two drops of the same radius are falling through air with a steady velcoity of 5 cm s^(-1). If the two drops coalesce, the terminal velocity would be