Questions
A) The rotation of Saturn's rings and of double stars has been detected using the phenomenon of Doppler effect.
B) Megaphone and ear trumpet work on the principle of interference of sound.
detailed solution
Correct option is C
In these two cases, two diametrically opposite sources of light are moving in opposite directios, one is moving towards the detector on earth and the other is moving away from the detector on earth. So apparent frequencies received by the detector, in both cases differ from the original frequency.Talk to our academic expert!
Similar Questions
A radar sends a radio signal of frequency 9 x 109 Hz towards an aircraft approaching the radar. If the reflected wave shows a frequency shift of 3 x 103 Hz, the speed with which the aircraft is approaching the radar, in m/s is (velocity of the radio signal is 3 x 108 m/s
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