Sudarshan Asked a Question
April 10, 2020 2:10 pmpts 30 pts
An astronaut is approaching the moon. He sends out a radio signal of frequency 5x10 Hz towards the moon and finds that the frequency shift in the echo received is 10 Hz. The speed of the astronaut is (A) 3 m/s (B) 30 m/s (C) 300 m/s (D) 3 km/s
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  • Somnath Best Answer
    See the attached file.
    • cropped1456558840852673127.jpg
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