MCQ
The unit for electric work in SI system:
- ✓joule
- Bwatt
- Cwatt second
- Dwatt hour
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column I | Column II |
| I. Permanent damage to the ears | (i) Greater than 120 dB |
| II. Safe limit of level of sound | (ii) 0-80 dB |
| III. Soothing sensation | (iii) 10-30 dB |
| IV. Lowest level of loudness | (iv) 0 dB |