A traffic cop sends a radar signal of 2.0 ×10^9 Hz towards a car approaching with a...
A traffic cop sends a radar signal of 2.0 ×10^9 Hz towards a car approaching with a speed of 120 km/s. Find the difference between the frequency of the light emitted by the radar, and the frequency reaching the speeding car.
- 180 Hz
- 222 Hz
- 330 Hz
- 460 Hz
Homework Answers
I have solved your problem which is shown below:
In the question you use the value of velocity of car is 120 km/s which is quite not possible and I use the correction that is 122 km/h and then convert in into m/s that is 33.33 m/s and using this and doppler effect the change in frequency is 222Hz which is shown below in detail.
I hope you like it. Thank you
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A traffic cop sends a radar signal of 2.0 ×10^9 Hz
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