Dual Nature of ...

The uncertainty in the position of a moving bullet of mass $$10\ gm$$ is $$10^{-5}\ m$$. Calculate the uncertainty in its velocity 

Imagine an atom made of a photon and a hypothetical particle of double the mass of the electron but having the same charge as the electron. Apply Bohr atom model and consider all possible transitions of this hypothetical particle to the first excited level. The longest wavelength photon that will be emitted has wavelength [Rydberg Constant = R] equal to

For wave connected with proton, de-broglie wavelength change by 0.25% if its momentum change by $$ P_0 $$ initial momentum=

Orbits of a particle moving in a circle are such that the perimeter of the orbit equals an integer number of de-Broglie wavelengths of the particle. For a charged particle moving in a plane perpendicular to a magnetic field, the radius of the nth orbital will therefore be proportional to  

Which of the  following is an to a possible de-Broglie's wavelength of a particle, which moves inside a cubical box of side length $$L$$, without losing any energy (elasticity colliding with walls of cube)?

If velocity of electron becomes equal to the velocity of light, then mass of electron will be

The wave length of a photon is twice the de Broglie wave length of the electron. If the speed of the electron is $$v_e = \dfrac{c}{{100}}$$. then the ratio of the energy of electron to that of photon $$\dfrac {E_e} {E_p}$$ is

The de Broglie wavelength of a gas molecule at a temperature T K is:

The circumstance of first of hydrogen atom is s.Then the Broglie wavelength of electron to that orbit is

Wavenumber of radiations having frequency of $$ 4 \times 10^{14} Hz $$ will be: