Question
Identify the following electromagnetic radiations as per the frequencies given below:
- 1020Hz
- 109Hz
- 1011Hz
Application: For treatment of cancer.
Application: For broadcasting radio-programmes to long distances.
Application: For cooking in microwave oven.
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| Lenses | Power (D) | Aperture (cm) |
| L1 | 3 | 8 |
| L2 | 6 | 1 |
| L3 | 10 | 1 |