Radial Probability Density = R(r) : Square of the Radial Wavefunction
The required volume is determined by the volume of the SPHERICAL SHELL enclosed between a sphere of radius (r+dr) and a sphere of radius r
rpd = radial probability density × volume of the spherical shell = R2 × 4πr2 drhow...
Does the speed of light vary with different frequencies(or wavelengths) in mediums other than vacuum, or is it constant for all light regardless the frequency?
do u mean that the velocity of light in a specific medium is not constant and differs according to the wavelength?
for example do x-rays and radio waves have different speeds in glass?
what i meant to ask is that the formula n=c/v shows that the index is constant for all light and depends only on the medium. however while explaining the dispersion, they say that the index of refraction depends on the wavelength of every light.
isn't there a contradiction?
thanks for...
i know what is harmonic number, i was asking about what determines it, for example in a pipe, whether it is of one or two openings, who decide what the harmonic number is i.e can we control it?? why does the first harmonic occur and not the second or vice versa?
thanks for answering
When a source emitting a sound of a specific frequency moves towards the face of a cliff at a speed. The frequency of the sound that reaches the cliff is for sure not the same as the frequency emitted from the source due to doppler effect.
Will the frequency of the sound reflected by the cliff...
n=c/v=λ0/λ (T doesn't change) and v of light is constant in a specific medium(i.e. the ratio is constant in given mediums), so the index of refraction is constant for all light when changing mediums.
If we say that index of refraction differs according to the wavelength, then there is...
what makes half life(T) of radiation independent of the quantity of radioactive substance? why is it constant whatever the amount of the radioactive substance is?
then how could i then calculate the voltage of a photoelectric cell if i calculated the number of the ejected photo-electrons and the kinetic energy of each electron?
they are considering that E=Ir+E' where E'(the back emf) and r are constants although the motor is supplied by a coil that has previously stored energy. so i is not constant, it is decreasing to zero, however they considering that the motor functions normally as E>E', and E' is always constant...
what about the second question: if i calculated the number of the ejected photo-electrons and the kinetic energy of each electron, how could i then calculate the voltage of this photoelectric cell?
why does photoelectric effect show the corpuscular nature of light? can't we approach photoelectric effect phenomenon by regarding radiation as a wave? can't a wave just give the energy it carries to the electron causing it extracting?
another question: with respect to...
1-if we want to increase the number of ejected photo-electrons, can we change the frequency of the electromagnetic radiation?
2-if i calculated the number of the ejected photo-electrons and the kinetic energy of each electron, how could i then calculate the voltage of this photoelectric cell?