de Broglie Relation: JEE Questions & Solutions

A particle having electric charge 3 10^-19 C and mass 6 10^-27 kg is accelerated by applying an electric potential of 1.21 V. Wavelength of…

The de Broglie wavelength of an oxygen molecule at 27^ C is x 10^-12 m. The value of x is (take Planck's constant=6.63 10^-34 J/s,…

The ratio of de Broglie wavelength of a deuteron with kinetic energy E to that of an alpha particle with kinetic energy 2E is n:1. (Assume…

A sub-atomic particle of mass 10^-30 kg is moving with a velocity of 2.21 10^6 m/s. Under the matter wave consideration, the particle will…

A proton of mass 'mp' has same energy as that of a photon of wavelength ' '. If the proton is moving at non-relativistic speed, then ratio…

If and K are de Broglie wavelength and kinetic energy, respectively, of a particle with constant mass. The correct graphical representation…

The de-Broglie wavelength of an electron is the same as that of a photon. If the velocity of the electron is 25 of the velocity of light,…

Electron beam used in an electron microscope, when accelerated by a voltage of 20 kV, has a de-Broglie wavelength of 0. If the voltage is…

The ratio of de-Broglie wavelength of an -particle and a proton accelerated from rest by the same potential is m. The value of m is:

An electron accelerated through a potential difference V1 has a de-Broglie wavelength of. When the potential is changed to V2, its…

A proton moving with one-tenth of velocity of light has a certain de-Broglie wavelength. An alpha particle having certain kinetic energy…

The kinetic energy of an electron, an -particle, and a proton are given as 4K, 2K, and K respectively. The de-Broglie wavelength associated…

If the radius of the first orbit of hydrogen atom is a0, then de Broglie’s wavelength of electron in the 3^ rd orbit is:

Proton (P) and electron (e) will have same de-Broglie wavelength when the ratio of their momentum is (assume mp = 1849 me): Options:

The de Broglie wavelength of a molecule in a gas at room temperature (300 K) is 1. If the temperature of the gas is increased to 600 K, the…

The ratio of the de-Broglie wavelengths of proton and electron having same Kinetic energy: ( Assume mp = me 1840)

A proton and an -particle are accelerated from rest by 2V and 4V potentials, respectively. The ratio of their de-Broglie wavelength is:

The de Broglie wavelength of an electron having kinetic energy E is. If the kinetic energy of the electron becomes E4, then its de Broglie…