Neutrons are neutral .. I mean there will be no change in the overall charge ..
Still there is indeed an increase in the overall energy of the atom ..
Answer:
1. By removing the reflector or reflecting elements
2. By using absorbing material on the reflecting surfaces.
Explanation:
To solve problems caused by reflecting surfaces, you can remove the reflector or reflecting elements. However, sometimes it is enough to turn/move the reflecting element and change the reflections. Furthermore, using absorbing material on the reflecting surface can help reduce comb filtering as well.
In some cases, it is possible to place the sound source so close to the reflecting surface, that there is no suspension between the direct sound and the reflected sound.
Answer:
Yes, we must focus on p-value along with the alpha level
Explanation:
Alpha and P values are provides two different set of information. While on one hand alpha values sets an extreme value set before rejecting the hypothesis, P value determines the extremeness of the values in the data set. Thus, if p values is lesser than or equal to alpha value, the null hypothesis is rejected, If p value is greater than alpha value, then the null hypothesis is not rejected.
Explanation:
In train's rest frame, the speed of photon is
and the proper length of the train is
. The time taken by the photon to cross the train is 
In ground frame, the speed of the photon is given as follows:


The speed of light or photon remains same in every frame of reference.
Now, the speed of train is very less as compared to the speed of photon so that
So that, 
The length contraction in the ground frame is given as follows:


Time taken by the photon to travel the length of the train in ground frame is .