MCQOPTIONS
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| 1. |
In which of the following sequences are the electromagnetic radiations in decreasing order of wave lengths |
| A. | Infrared, radio, X - rays, visible |
| B. | Radio, infrared, visible, X- rays |
| C. | Radio, visible, infrared, X -rays |
| D. | X- rays, visible, infrared, radio |
| Answer» B. Radio, infrared, visible, X- rays | |