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Define Surface Contaminations (Wisconsin-Madison)?
A surface scientist wishes to remain an exposed surface "clean" (≤ 0.05 adsorbed monolayer) for an experiment lasting for times t≥5 h at a temperature T =300K. Calculate approximately the needed data and calculate a value for the required background pressure in the apparatus if each incident molecule sticks to the surface.
why at critical temperature in superconductors resistance becomes zero? Solution) For conductors as the temperature increases their rasistance increases and as temperature decreas
Q. State Huygen's principle. Huygen's principle: (a) Every point on a specified wave front may be considered as a source of secondary wavelets which spread out with the sp
Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.
one coin is thrown upword from 100m top building with velocity 15m/s .2s later 2nd coin is dropped downword at what distance from top of building 2nd coin cross first? Ans) They
What is an asteroid, comet, dwarf planet with respect to their mass, moment of inertia and dimension? Ans) Dwarf Planet is lighter,smaller than a planet ( Pluto ).They usually a
Give the overview of Newton formulation of physical laws. Newton's formulation of physical laws was so influential which his equations are still in use nowadays. By the beginni
Q. Define: current sensitivity of a galvanometer. The current sensitivity of a galvanometer is described as the deflection produced when unit current passes through the galvan
define capacitor filter briefly?
Causes of Low power factor The major causes of low power factor in the electric supply system are as follows. Due to reactive load Most of the AC motors used in i
#question how i write a assignment about it..
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