Dual Nature of ...

When the electron in a H-atom jumps from 6th excited state to 2nd excited state, the maximum number of emission lines will be.

Wavelength associated with an electron having kinetic energy $$ 3 \times 10^{-25} J$$ is $$x \times 10^{-7} \ m $$. What is the value of $$x$$?

Two particle of mass m and 2m moving in opposite direction collide head on. They have same de-Broglie wavelength before collision after the collision.

Wavelength of an electron having  energy 10 keV is ....................$${{\text{A}}^0}$$

Among the following for which one mathemetical expression $$\lambda =\dfrac { h }{ p } $$ stands

A free particle with initial kinetic energy E and de-broglie wavelength $$\lambda$$ enters a region in which it has potential energy U. What is the particle's new de-Broglie wavelength?

Two particles of de-broglie wavelength $$\lambda_x$$ and $$\lambda_y$$ are moving in opposite directions. find dBroglie wavelength after perfectly inelastic collision:

A proton and an $$\alpha$$ particle are accelerated through the same potential difference V. The ratio of their de Broglie wavelengths is?

A source of light has energy flux of 10 $$W/m^2$$. The light is falling perpendicularly to the surface of area 5 $$cm^2$$. If the surface completely absorbs the incident light then the force exerted on the surface is approximately

The De-Broglie wave length of electron in second exited state of hydrogen atom is