MCQOPTIONS
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MCQOPTIONS
| 1. |
A rocket is moving away from the earth at a speed of\[6\times {{10}^{7}}m/s\]. The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth (wavelength of blue light = \[4600\,{AA}\] ) |
| A. | \[4600\,\,{AA}\] |
| B. | \[5520\,\,{AA}\] |
| C. | \[3680\,\,{AA}\] |
| D. | \[3920\,\,{AA}\] |
| Answer» C. \[3680\,\,{AA}\] | |