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Q. What is the principle of Millikan's oil drop method?
Principle
This method is foundation on the study of the motion of uncharged oil drop under free fall due to gravity and charged oil drop in a uniform electric field.
By adjusting identical electric field suitably a charged oil drop can be made to move up or down or even kept balanced in the field of view for adequately long time and a series of observations can be made.
linear polarizers whose transmission axes make an angle of 45degree with each other,.The transmitted light intensity through both polarizers is what percentage of the incident inte
Two forces-55-N clockwise and 35-N counters clockwise-are applied to a merry- go-round with a diameter of 4.5 m. What is the net torque?
Cathode rays are : (1)Protons (2)Electrons (3)Neutrons (4)alfa -particles Ans; (2)Electrons
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Evaluate the speed will the string break A certain string just breaks when it is under400N of tension. A boy uses this string to whirl a 10-kgstone in a horizontal circle of rad
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The minimum real charge on any particle which can exist is: (1)1.6x 10 -19 coulomb (2) 1.6x 10 -10 coulomb (3)4.8 x 10 -10 coulomb (4)Zero Ans: (1)1.6x 10 -19 c
Friction has several disadvantages but life is impossible without friction because friction has many benefits also.
Forces on a Pendulum The weight, force because of tension, and total force exerted on the bob of a pendulum are displayed.
The process of transformation of one element into another by bombarding it with high energy particles is called "Artificial transmutation". Artificial radio activity is the proc
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