Dual Nature of ...

The photo-electrons emitted from a surface of sodium metal are such that

The log-log graph between the energy $$E$$ of an electron and its de-Broglie wavelength $$\lambda$$ will be

Which one is correct

By photoelectric effect, Einstien proved

According to Bohr's theory, the electron in orbits have definite energy values, then according to uncertainty principle, the life time of an excited state will be

The figure shows different graph between stopping potential $$(V_0)$$ and frequency $$(v)$$ for photosensitive surface of cesium, potassium, sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be 

An electron is moving through a field. It is moving (i) opposite an electric field (ii) perpendicular to a magnetic field as shown. For each situation the de-Broglie wave length of electron

According to Uncertainty principle if position of a any particle is measured by cent percent value., then the uncertainty in its momentum will be :

Find out the de-Broglie wavelength related to an electron of kinetic energy $$10$$ eV:

An electron and a proton are bound in a linear box of dimension $$10A $$. Then the uncertainties in their momentum is: