The frequency of light emitted for the transition n = 4 to n = 2 of He+ is equal to the transition in H atom corresponding to which of the following
Uncertainty in the position of an electron (mass = 9.1 × 10–31 kg) moving with a velocity 300 ms–1, accurate upto 0.001%, will be (h = 6.63 × 10–34 Js)
The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per second is approximately
The wave number of the spectral line in the emission spectrum of hydrogen will equal to times the Rydberg’s constant if the electron jumps from ______.
Ionisation energy of He+ is 19.6 ´ 10–18 J atom–1. The energy of the first stationary state (n = 1) of Li2+ is
The energy required to break one mole of Cl – Cl bonds in Cl2 is 242 kJ mol–1. The longest wavelength of light capable of breaking a single Cl – Cl bond is
UPSC Daily Static Quiz 8 January 2022 composed by the Gkseries team is very helpful to UPSC aspirants.
The electronic transitions from n = 2 to n = 1 will produce shortest wavelength in (where n = principal quantum state)
The energy of an electron in first Bohr orbit of H-atom is –13.6 eV. The possible energy value of electron in the excited state of Li2+ is
