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Emission spectrum of hidrogen is different from emission spectrum of sodium.Why? Ans) Because, in sodium atom there are already many other electrons present in the atom aother than
Uses of Radio Isotopes: Industries: 1. Radio active isotopes are used to detect leakage in pipes. 2. It estimates weak and tear machine tools. 3. It is used to check t
Obtain expression for an optical path difference for formation of circular fringe in Michelson''s interferometer
Noise: An undesirable and unpleasant sound that makes harmful effects on our auditory system is known as noise.
Q. Illustrate what does gravitational force depend on? Answer:- The Gravitational force depends on distance as well as mass. Therefore the formula for calculating gravitat
prove - w2=w0+2alpha(thita-thita0)
Q. A compound microscope consists of an objective lens of focal length 2.0cm and an eye piece of focal length 6.25cm separated by a distance of 15cm.How far from the objective sho
to find coefficient of viscosity of a liquid using stok''s law
what is alternating current
Which quantity is unchanged during refraction of light? Describe critical angle. Show an application of total internal reflection.
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