Shaalaa.com | Wavelength of an electron
In hydrogen atom Balmer series is obtained when the electron jumps from ............ .
(a) higher orbit to first orbit
(b) first orbit to a higher orbit
(c) higher orbit to the second orbit
(d) second orbit to a higher orbit
Light of a certain wavelength has a wave number `barv` in vacuum. Its wave number in a medium of refractive index n is _______.
Light of wavelength 3000Å falls on a metal surface having work function 2.3 eV. Calculate the maximum velocity of ejected electrons
(Planck's constant h = 6.63 x 10-34 J.s., Velocity of light c = 3 x 108 m/s, mass of an electron = 9.1 x 10-31 kg)