I don't know if you've studied Qualitative Inorganic Analysis yet, but the ions which get precipitated but dil. HCl are called Group I ion, which are Ag+, Hg2+, and Pb2+. Upon adding the reagent they precipitate as chlorides. SInce they gave that the precipitate dissolves when the solution is...
Homework Statement
I know that the equation ΔSsystem = Q/T is only valid for a reversible process but whenever i see problems involving a irreversible isothermal expansion of ideal gas, the ΔSsurroundings is taken as -Qirr/T. Why is that equation valid for surroundings, is it because the...
sorry,
μ = refractive index on medium
u = object distance
v = image distance
r = radius of curvature of spherical surface
Let me rephrase my question:
For a lens:
Refraction at first surface follow by refraction on second surface;
For a silver lens:
What i have been taught:
Refraction at first...
When dealing with lenses which have one curved/flat surface silvered why do we consider light to refract twice before hitting the silver side? This diagram should show what i mean:
The way it appears to me is that after light enters the un-silvered surface it refracts then it does...