Dual Nature of ...

The speed of an electron having a wavelength of $${ 10 }^{ -10 }m$$ is

An electron in an electron microscope with initial velocity $$v_0i$$ enters a region of a stray transverse electric field $$E_0j$$. The time taken for the change in its de Broglie wavelength from the initial value of $$\lambda$$ to $$\dfrac{\lambda}{3}$$ is proportional to.

If the linear momentum of a particle is $$2.2 \times 10^4\, kg\, ms^{-1}$$, then what will be its de-Broglie wavelength ? (Take hr. $$6.6 \times 10^{-34}\, Js$$) 

The wavelength $$\lambda$$ of a photon and the de-Broglie wavelength of an electron have the same value. Find the ratio of energy of photon of the kinetic energy of electron in terms of mass m, speed of light c and planck constant.

The energy of a $$K$$-electron in tungsten is $$-20keV$$ and of an $$L$$-electrons is $$-2keV$$. The wavelength of X-rays emitted when there is electron jump from $$L$$ to $$K$$ shell:

An electron and a photon have same wavelength of $$10^{-9}$$m. If E is the energy of the photon and p is the momentum of the electron, the magnitude of E/p in SI units is?

A particle is projected horizontally with a velocity $$10\ m/s$$. What will be the ratio of de-Broglie wavelengths of the particle, when the velocity vector makes an angle $$30^{\circ}$$ and $$60^{\circ}$$ with the horizontal?

A charged particle is accelerated from rest through a certain potential difference. The de Broglie wavelength is $${ \lambda  }_{ 1 }$$ when it is accelerated through $${V}_{1}$$ and is $${ \lambda  }_{ 2 }$$ when accelerated through $${V}_{2}$$. The ratio $${ \lambda  }_{ 1 }/{ \lambda  }_{ 2 }$$ is

An electron of mass m and a photon have same energy E.Find out the ratio of de-Brogile wavelength associated with them is (c- velocity of light)

Einstein's photoelectric equation is?