Doppler Effect: a Navigational Beacon in Deep Space Broadcasts at a Radio

question 25

Multiple Choice

Doppler effect: A navigational beacon in deep space broadcasts at a radio frequency of 50 MHz. A spaceship approaches the beacon with a relative velocity of 0.40c. The spaceship passes the beacon and departs from it with a DIFFERENT relative velocity. The beacon signal is now detected at a frequency of 40 MHz. What is the new velocity of the spaceship relative to the beacon?

• A) 0.20c
• B) 0.22c
• C) 0.24c
• D) 0.26c
• E) 0.28c

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