MCQ
If the work function for a certain metal is $3.2 \times 10^{-19}$ joule and it is illuminated with light of frequency $8 \times 10^{14} \mathrm{~Hz}$. The maximum kinetic energy of the photo-electrons would be $\left(h=6.63 \times 10^{-34} \mathrm{Js}\right)$
- ✓$2.1 \times 10^{-19} \mathrm{~J}$
- B$8.5 \times 10^{-19} J$
- C$5.3 \times 10^{-19} \mathrm{~J}$
- D$3.2 \times 10^{-19} \mathrm{~J}$