In Millikan’s oil drop experiment, what ...

In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius `2.0xx 10^5` m and density `1.2xx 10^3 kg m^-3`. Take the viscosity of air at the temperature of the experiment to be `1.8xx 1 0^-5` Pa s. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air

Topper's Solved these Questions

Laws of Motion
PSEB|Exercise Exercise|69 Videos
MECHANICAL PROPERTIES OF SOLID
PSEB|Exercise EXERCISE|24 Videos

Similar Questions

Explore conceptually related problems

Calculate the terminal velocity of air bubble of radius 10^-5 m rising in water of viscosity 10^-2 Nsm^-2 . Density of water 10^3 kg m^-3 and density of air is negligible as compared to water.

What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature ? Surface tension of mercury at that temperature ( 20^@C ) is 4.65xx10^-1 N m^-1 The atmospheric pressure is 1.01xx 10^5Pa . Also give the excess pressure inside the drop.

What is the Coulomb.s force between two small charged spheres having charges 2.0xx10^-7 C and 3.0 xx 10^-7 Coulomb placed 30 cm in air.

What is the de-Broglie wavelength of a dust particle of mass 1.0 xx 10^-9 kg drifting with a speed of 2.2 m/s?

(a) What is the largest average velocity of blood flow in an artery of radius 2 xx 10^-3 m if the flow must remain laminar? (b) What is the corresponding flow rate? (Taking viscosity of blood to be 2.084 xx 10^-3 Pa s)

What is the de-Broglie wavelength of a ball of mass 0.060 kg moving at a speed of 1.0 m/s.

A magnet weighs 75 g and its magnetic moment is 2xx10^-4 A m^2 . If the density of the material of the magnet is 7.5 xx 10^3 kg m^-3 , calculate the intensity of magnetisation.

The mass to charge ratio (m//e) for a cation is 1.5xx10^(-8) kg//C. What is the mass of this cation?

PSEB-MECHANICAL PROPERTIES OF FLUIDS-EXERCISE

Glycerine flows steadily through a horizontal tube of length 1.5 m and...
Text Solution
|
In a test experiment on a model aeroplane in a wind tunnel, the flow s...
Text Solution
|
Figures 10.23(a) and (b) refer to the steady flow of a (non-viscous) l...
Text Solution
|
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 o...
Text Solution
|
A U-shaped wire is dipped in a soap solution, and removed. The thin so...
Text Solution
|
Figure 10.24 (a) shows a thin liquid film supporting a small weight = ...
Text Solution
|
What is the pressure inside the drop of mercury of radius 3.00 mm at r...
Text Solution
|
What is the excess pressure inside a bubble of soap solution of radius...
Text Solution
|
A tank with a square base of area 1.0 m^2 is divided by a vertical par...
Text Solution
|
A manometer reads the pressure of a gasin an enclosure asshown in Fig....
Text Solution
|
A manometer reads the pressure of a gasin an enclosure asshown in Fig....
Text Solution
|
Two vessels have the same base area but different shapes. The first ve...
Text Solution
|
During blood transfusion the needle isinserted in a vein where the gau...
Text Solution
|
In deriving Bernoulli's equation, we equated the work done on the flui...
Text Solution
|
In deriving Bernoulli's equation, we equated the work done on the flui...
Text Solution
|
In deriving Bernoulli's equation, we equated the work done on the flui...
Text Solution
|
A plane is in level flight at constant speed and each of its two wings...
Text Solution
|
In Millikan’s oil drop experiment, what is the terminal speed of an un...
Text Solution
|
Mercury has an angle of contact equal to 140^@ with soda lime glass. A...
Text Solution
|
Two narrow bores of diameters 3.0 mm and 6.0 mm are joined together to...
Text Solution
|