Question
Distinguish between music and noise.
| Music | Noise |
| 1. It is pleasant, smooth and agreeable to the ear. | 1. It is harsh, discordant and displeasing to the ear. |
| 2. It is produced by the vibrations which are periodic.. | 2. It is produced by an irregular succession of disturbances. |
| 3. All the component waves are similar without any sudden change in their wavelength and amplitude. | 3. The component wave changes their character suddenly and they are of short duration.. |
| 4. The sound level is low (below 30 dB). | 4. The sound level is hiah (above 120 dB). |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
or
When a solenoid that is carrying current is freely suspended, it comes to rest in a particular direction. Why does this happen?