MCQ
When a semiconductor is heated, its resistance
- ✓Decreases
- BIncreases
- CRemains unchanged
- DNothing is definite
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List$-I$ | List$-II$ |
| $UV$ rays | $(i)$ Diagnostic tool in medicine |
| $X-$ rays | $(ii)$ Water purification |
| Microwave | $(iii)$ Communication, Radar |
| Infrared wave | $(iv)$ Improving visibility in foggy days |
Choose the correct answer from the options given below.

