Which of the following statement (s) are incorrect?
A. Photons having energy 400 kJ will break 4 mole bonds of a molecule `A_(2)` where A-A bond dissociation energy is `100kJ//"mol".`
B. Two bulbs are emitting light having wavelength `2000"Å" "and" 3000"Å"` respectively. If the bulbs A and B are 40 watt and 30 watt respectively then the ratio of no. of photons emitted by A and B per day is `1/2`.
C. When an electron make transition from lower to higher orbit photon is emitted.
D. 4 eV is sufficient to excite an `e^(-)` from ground state of H-atom.
Share with your friends
Call