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In Rutherford's experiment including the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to.
It was concluded that
Ans- Most of the mass of a gold atom is in its nucleus
Radio active series There are three radio active series depending on their progenitor. They are i) Uranium series called (2n+2) series, ii) Actino-Uranium series, call
Avogadro constant; L; NA (Count A. Avogadro; 1811) The number of items in a sample substance is equivalent to the number of atoms or molecules in a sample of ideal gas that is
The phenomenon of diffraction was first discovered by Girmaldi. Its experimental study was completed by Newton's and young. The theoretical explanation was first provided by Fresne
How is plastic clad silica fibre used in optical fibres? Plastic clad silica fibre: Plastic clad silica fibre (PCS) is other type of optical cable. This has an attenuation l
Is the earth the perpetual motion machine
WHY HEATER IS KEPT IN CONTROL ROOM OF MRI? IS IT KEPT ON ALL THE TIME OR IT CAN BE TURNED OFF AT NIGHT AND RESTARTED AT MORNING
Find the resultant of two vectors defined as A=6km east B=8km north
What are radiation hazards? Mention four safety measures which should be taken against radioactive radiation. OR Explain radio isotopes? Write their any four uses. Descri
Induced electric currents can be explained using which of the following laws? a) Gauss's Law b) Faraday's Law c) Ohm's Law d) Ampere's Law Ans: Induced e
Can the voltage drop across the inductor or the capacitor in a series LCR circuit be greater than the applied voltage of the a.c. source?
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