A bulb is rated at 150 watt, converting 8% energy into light. If energy of one photon is 4.42 × 10⁻¹⁹ J$4.42 \times 10^{-19} \text{ J}$, how many photons are emitted by the bulb per second?

Related Formula

Core Logic

A: n=2, l=1 2p$n=2, l=1 \implies 2p$ (II) B: n=4, l=0 4s$n=4, l=0 \implies 4s$ (III) C: n=5, l=3 5f$n=5, l=3 \implies 5f$ (IV) D: n=3, l=2 3d$n=3, l=2 \implies 3d$ (I)

Matches: A-II, B-III, C-IV, D-I.

Step 1: Conclusion

Correct option is (1).

Pattern Recognition

Direct mapping of azimuthal quantum number l$l$ to orbital subshell letters.

Chapter Mix

Class 11 Chemistry: Structure of Atom