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Explain about the term electron microscope. Electron microscope: An electron microscope is a form of microscope which uses electrons to illuminate a specimen and make an enl
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
A body of mass 500g IS heated such that its température roses from -4*c to 100*c calculate the total heat energy consumed
what is entropy and how is it useful in our everyday life?
A simple calorimeter Small soup tins can be found which fit loosely into a 1lb. jam jar. If the top of the tin is cut off cleanly with a rotary type opener it serves as an good
In the nucleus of 20 Ca 40 there are: (1) 40 protons and 20 electrons (2) 20 protons and 40 electrons (3) 20 protons and 20 neutrons (4) 20 protons and 40 neutrons
GYROSCOPES: PRINCIPLES Gyroscopes are rotating masses (usually cylindrical in form) which are deliberately employed because of the particular properties which they demonst
A gas is compressed from 400 cm3 to 200 cm3 at a constant pressure of 100 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in internal
(a) A 400mm length of conductor carrying a current of 25A is situated at right-angles to a magnetic field among two poles of an electric motor. The poles have a circular cross
Q. Measure of elapsed period using the SI unit? Answer:- 1. This is the question that each true scientist dreads to be asked especially in a public setting by extremely in
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