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2 An observer casts a laser pulse of frequency v = 10 Hz against a mirror, which is moving with a speed v = 5x 10' m/s opposite to the direction of the pulse, and whose surface is orthogonal to it. The observer then measures the frequency v of the pulse coming back after being reflected by the mirror. What is the value of v ?

2 An observer casts a laser pulse of frequency v = 10 Hz against a mirror, which is moving with a speed v = 5x 10' m/s opposite to the direction of the pulse, and whose surface is orthogonal to it. The observer then measures the frequency v of the pulse coming back after being reflected by the mirror. What is the value of v ?

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An observer casts a laser pulse of frequency v = 105 Hz against a mirror, which is moving with a speed v = 5x 10' m/s opposite to the direction of the pulse, and whose surface is orthogonal to it. The observer then measures the frequency v of the pulse coming back after being reflected by the mirror. What is the value of v ?
Transcribed Image Text:An observer casts a laser pulse of frequency v = 105 Hz against a mirror, which is moving with a speed v = 5x 10' m/s opposite to the direction of the pulse, and whose surface is orthogonal to it. The observer then measures the frequency v of the pulse coming back after being reflected by the mirror. What is the value of v ?
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