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In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0×10^−5 m and density 1.2×10^23 kgm^−3 . Take the viscosity of air at the temperature of the experiment to be 1.8×10^−5 Pas. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air.
13
Nov
In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0×10^−5 m and density 1.2×10^23 kgm^−3 . Take the viscosity of air at the temperature of the experiment to be 1.8×10^−5 Pas. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the [...]
A plane is in level flight at constant speed and each of its two wings has an area of 25 m^2. If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the mass of plane’s. (Take air density to be 1 km m^−3 ).
13
Nov
A plane is in level flight at constant speed and each of its two wings has an area of 25 m^2. If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the mass of plane’s. (Take air density to be 1 km m^−3 [...]
Blackened oil painting can be restored into original form by the action of (a) Chlorine (b) BaO2 (c) H2O2 (d) MnO2
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Nov
Blackened oil painting can be restored into original form by the action of (a) Chlorine (b) BaO2 (c) H2O2 (d) MnO2 Blackened oil painting can be restored into original form by the action of (a) Chlorine (b) BaO2 (c) H2O2 (d) MnO2 November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2 cm. If this telescope is used to see a 50 metre tall building at a distance of 2 km, what is the height of the image of the building formed by the objective lens?
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Nov
A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2 cm. If this telescope is used to see a 50 metre tall building at a distance of 2 km, what is the height of the image of the building formed by the objective lens? A telescope [...]
What should be the maximum acceptance angle at the air-core interface of an optical fibre if n1 and n2 are the refractive indices of the core and the cladding, respectively ?
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Nov
What should be the maximum acceptance angle at the air-core interface of an optical fibre if n1 and n2 are the refractive indices of the core and the cladding, respectively ? respectively What should be the maximum acceptance angle at the air-core interface of an optical fibre if n1 and n2 are the refractive indices [...]
An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle of
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Nov
An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle of An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle of November 13, 2020 Category: AIIMS Last 24 Years Solved [...]
An object is immersed in a fluid. In order that the object becomes invisible, it should
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Nov
An object is immersed in a fluid. In order that the object becomes invisible, it should An object is immersed in a fluid. In order that the object becomes invisible it should November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 28 - Electromagnetic Waves [...]
When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is.
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Nov
When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is. the maximum accuracy is achieved if the light is. When a beam of light is used to determine the position of an object November 13, 2020 Category: AIIMS Last 24 Years Solved [...]
Match the elements of table I and table II. Table I Table II a) Myopia i) Bifocal len b) Hypermetropia ii) Cylindrical lens c) Presbyopia iii) Concave lens d) Astigmatism iv) Convex lens
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Nov
Match the elements of table I and table II. Table I Table II a) Myopia i) Bifocal len b) Hypermetropia ii) Cylindrical lens c) Presbyopia iii) Concave lens d) Astigmatism iv) Convex lens Match the elements of table I and table II. Table I Table II a) Myopia i) Bifocal len b) Hypermetropia ii) Cylindrical [...]
Relation between critical angle of water and the glass is :
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Nov
Relation between critical angle of water and the glass is : Relation between critical angle of water and the glass is : November 13, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 28 - Electromagnetic Waves , Physics ,