MCQ
The mass of a photo electron is
- A$9.1 \times {10^{ - 27}}\,kg$
- B$9.1 \times {10^{ - 29}}\,kg$
- ✓$9.1 \times {10^{ - 31}}\,kg$
- D$9.1 \times {10^{ - 34}}\,kg$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

