Answer:
So the car was speeding more moving towards North
Explanation:
As we know that during the collision of two cars total momentum before collision and after collision must be conserved
So here we can say that after collision two cars are locked and moved together Exactly towards North-East
So here momentum of two cars must be exactly same before collision in East and North directions
So we will have
So the car was speeding more moving towards North
Below are the choices that can be found in the other sources:
A. diffraction
<span>B. refraction </span>
<span>C. reflection </span>
<span>D. transmission
</span>
The answer is diffraction. It means that <span>the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.</span>
To make sure the answer is correct
Index of refraction can be calculated using the following formula:
where in a vacuum and "n" is the index of refraction. So we must calculate our velocity by manipulating the index of refraction formula and isolate v and so:
We could go one by one and calculate the velocity or use logic. If you divide by a larger number the output will be a smaller number. Therefore, the answer would be n=1.62 is the slowest.
By that logic when n=1 light would travel the fastest of these four scenarios. The key thing to understand about these problems is that the speed of light slows down as it goes through a medium, in a vacuum it's 3 x 10^ 8 m/s but as it goes through say air or water light slows down.