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According to Rutherford's experiment when a sample of radioactive substance is place in a lead box and permit the emission of radiation by a small hole only. When the radiation enters into the external electric field, they divide into three parts
(i) Radiations which deflects towards negative plate are known as alpha- rays (stream of positively charged particles)
(ii) Radiations which deflects towards positive plate are known as Beta-particles (stream of negatively charged particles)
(iii) Radiations which are undeflected known as Gamma rays. (E.M. waves or photons)
what are unlike parallel forces with example?
what is the tension in the string when the block is lifted at a steady speed when the weight weighs 4.5N and the distance is 90cm
When the economy experiences a downfall, the government knows exactly which policies will spur an economic recovery. Often policymakers fail to take the right decisions for both
An object is placed 25.0cm from a thin converging lens. A screen is positioned so that a sharp image of the object is seen on the screen. When the object is moved 4.0cm closer to t
explain quantization of charge
Ampere's law, modified form: The line integral of the magnetic field about a closed curve is proportional to the total of two terms: first one, the algebraic total of electric
Q Define: self inductance. The coefficient of self induction of a coil is numerically equivalent to the opposing emf induced in the coil when the rate of change of current thr
Q. On what factors does the amount of optical rotation depend? The amount of optical rotation relay on (a) Thickness of crystal (b) Density of the crystal or else concent
The liquids which permits the current to pass by them and also dissociates into ions on passing current by them are named electrolytes e.g. resolution of salts, bases and acids in
in a uniform electric field, the potential is 10v at the origin and 8v at each of the points (1,0,0),(0,1,0) and (0,0,1).Find the potential at the point (1,1,1).
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