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Calculate the molar concentration of the solution essential to obtain the value of 10 molecules per µm2. (For this calculation we suppose that the transfer of the dye molecules from solution to the sample surface by evaporation of the solvent is homogeneous on the whole wetted area.)
The sample is illuminated with the 543.5 nm-line of a green He-Ne laser. The excitation power is adjusted so that the illuminated area (100 nm in diameter) is hit by 3 · 1010 photons per second.
what are ion? under what conditions are they produced?
Designate on an energy level diagram thee conduction and valence bands, acceptor & donor states and position of Fermi level for (i) An intrinsic semiconductor. (ii) A n-type
NUMERICAL OF KOHLRAUSCH LAW ON CONDUCTIVITY
how to dye a cotton and wool cloth with aniline yellow?
define it
Energy difference is maximum between which of the consecutive energy levels in an atom? solution) According to the line spectrum of hydrogen maximum energy is there between FIRST
Boiling point - physical charterstics of monocarboxylic acid Boiling point of carboxylic acids is rise constantly with increase of molecular mass. Boiling points of carboxylic
The ratio of the energy of a photon of 2000Å wavelength radiation to that of 4000 Å radiation is: (1) 1/4 (2) 4 (3) 1/2 (4) 2 Ans
Anomalous behaviour of boron
test for acidic radicals
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