1.

 A star emitting radiation at a wavelength of \[5000\,{AA}\] is approaching earth with a velocity of\[1.5\times {{10}^{6}}m/s\]. The change in wavelength of the radiation as received on the earth, is                                            [CBSE PMT 1995]

A. \[25\,\,{AA}\]
B. Zero
C. \[100\,\,{AA}\]                  
D. \[2.5\,\,{AA}\]           
Answer» B. Zero


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