You get pulled over for running a red light. You explain to the police officer that the light appeared green to you due to the Doppler effect. The police officer writes you a ticket for speeding instead. The fine is $100 for every 10km/hr over the speed limit of 60km/hr you were traveling. How much is the speeding ticket?

Respuesta :

Answer:

$ 3085713685.71

Explanation:

[tex]\lambda_0[/tex] = Actual wavelength = 700 nm

[tex]\lambda[/tex] = Changed wavelength = 500 nm

Let the wavelength of red color be 700 nm and green be 500 nm

Change in wavelength is

[tex]\Delta \lambda=700-500\\\Rightarrow \theta\lambda=200\ nm[/tex]

We have the relation

[tex]\dfrac{\Delta\lambda}{\lambda_0}=\dfrac{v}{c}\\\Rightarrow v=\dfrac{\Delta\lambda}{\lambda_0}c\\\Rightarrow v=\dfrac{200}{700}\times 3\times 10^8\\\Rightarrow v=85714285.7143\ m/s[/tex]

The speed of the vehicle is 85714285.7143 m/s

[tex]\dfrac{85714285.7143\times 3600}{1000}=308571428.571\ km/h[/tex]

By how much was the car speeding

[tex]308571428.571-60=308571368.571\ km/h[/tex]

The number of 10 km/h in the above speed

[tex]308571368.571\times\dfrac{1}{10}=30857136.8571[/tex]

Cost of the ticket

[tex]30857136.8571\times 100=\$ 3085713685.71[/tex]

The cost of the ticket is $ 3085713685.71