When a metal surface is exposed to solar radiations
If electron, hydrogen, helium and neon nuclei are all moving with the velocity of light, then the wavelength associated with these particles are in the order
Which of the following is related with both wave nature and particle nature ?
If the radius of first Bohr orbit be a0, then the radius of the third orbit would be
Which one of the following represents noble gas configuration :
The ratio of the radius of the first Bohr orbit for the electron orbiting the hydrogen nucleus to that of the electron orbiting the deuterium nucleus (mass nearly twice that of the hydrogen nucleus) is approximately
The mass of a photon with a wavelength equal to 1.54 × 10–8 cm is