Question
Give the direction in which the induced current flows in the coil mounted on an insulating stand when a bar magnet is quickly moved along the axis of the coil from one side to the other as shown in the figure alongside.


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| S. No. | Wavelength Range |
| 1. | 1mm to 700nm |
| 2. | 400nm to 1nm |
| 3. | 1nm to 10-3nm |
| 4. | < 10-3nm |