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TLS Online TPP Program
#Question id: 20032
#XL - P Chemistry
If threshold wavelength for ejection of electron from metal is 300nm, then work function for photoelectric emission is
TLS Online TPP Program
#Question id: 20033
#XL - P Chemistry
The mass of one mole of electron is
TLS Online TPP Program
#Question id: 20034
#XL - P Chemistry
In two H atoms A and 13 the electrons move around the nucleus in circular orbits of radius r and 4r respectively. The ratio of the times taken by them to complete one revolution is
TLS Online TPP Program
#Question id: 20035
#XL - P Chemistry
For the electronic transition from n = 2 to n = 1 which one of the following will produce shortest wave length?
TLS Online TPP Program
#Question id: 20036
#XL - P Chemistry
The energy required to dislodge electron from excited isolated H atom (IE1 = 13.6eV) is
TLS Online TPP Program
#Question id: 20037
#XL - P Chemistry
Velocity of electron in the first orbit of H-atom is compared to that of velocity of light is approximately