MCQOPTIONS
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| 1. |
Which of the following statement is not correct [AFMC 1999] |
| A. | Photographic plates are sensitive to infrared rays |
| B. | Photographic plates are sensitive to ultraviolet rays |
| C. | Infra-red rays are invisible but can cast shadows like visible light |
| D. | Infrared photons have more energy than photons of visible light |
| Answer» E. | |