MCQOPTIONS
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| 1. |
Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it._x005F_x000D_ Emission of light or heat from a central point |
| A. | Rays |
| B. | Refraction |
| C. | Reflection |
| D. | Radiation |
| Answer» E. | |